The Integers 1601 to 1700

• Count(d(N)) is the number of positive divisors of n, including 1 and n itself.
• σ(N) is the Divisor Function. It represents the sum of all the positive divisors of n, including 1 and n itself.
• s(N) is the Restricted Divisor Function. It represents the sum of the proper divisors of n, excluding n itself.
• For a Prime Number, Count(d(N))=2. The only divisors for a Prime Number are 1 and itself.
• A Deficient Number is greater than the sum of its proper divisors; that is, s(N)<n.
• An Abundant Number is less than the sum of its proper divisors; that is, s(N)>n.
• A Perfect Number equals the sum of its proper divisors; that is, s(N)=n.

N	Divisors of N	Count(d(N))	σ(N)	s(N)	Prime or Composite	Notes
1601	1, 1601	2	1602	1	Prime	Deficient
1602	1, 2, 3, 6, 9, 18, 89, 178, 267, 534, 801, 1602	12	3510	1908	Composite	Abundant
1603	1, 7, 229, 1603	4	1840	237	Composite	Deficient
1604	1, 2, 4, 401, 802, 1604	6	2814	1210	Composite	Deficient
1605	1, 3, 5, 15, 107, 321, 535, 1605	8	2592	987	Composite	Deficient
1606	1, 2, 11, 22, 73, 146, 803, 1606	8	2664	1058	Composite	Deficient
1607	1, 1607	2	1608	1	Prime	Deficient
1608	1, 2, 3, 4, 6, 8, 12, 24, 67, 134, 201, 268, 402, 536, 804, 1608	16	4080	2472	Composite	Abundant
1609	1, 1609	2	1610	1	Prime	Deficient
1610	1, 2, 5, 7, 10, 14, 23, 35, 46, 70, 115, 161, 230, 322, 805, 1610	16	3456	1846	Composite	Abundant
1611	1, 3, 9, 179, 537, 1611	6	2340	729	Composite	Deficient
1612	1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612	12	3136	1524	Composite	Deficient
1613	1, 1613	2	1614	1	Prime	Deficient
1614	1, 2, 3, 6, 269, 538, 807, 1614	8	3240	1626	Composite	Abundant
1615	1, 5, 17, 19, 85, 95, 323, 1615	8	2160	545	Composite	Deficient
1616	1, 2, 4, 8, 16, 101, 202, 404, 808, 1616	10	3162	1546	Composite	Deficient
1617	1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617	12	2736	1119	Composite	Deficient
1618	1, 2, 809, 1618	4	2430	812	Composite	Deficient
1619	1, 1619	2	1620	1	Prime	Deficient
1620	1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620	30	5082	3462	Composite	Abundant
1621	1, 1621	2	1622	1	Prime	Deficient
1622	1, 2, 811, 1622	4	2436	814	Composite	Deficient
1623	1, 3, 541, 1623	4	2168	545	Composite	Deficient
1624	1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624	16	3600	1976	Composite	Abundant
1625	1, 5, 13, 25, 65, 125, 325, 1625	8	2184	559	Composite	Deficient
1626	1, 2, 3, 6, 271, 542, 813, 1626	8	3264	1638	Composite	Abundant
1627	1, 1627	2	1628	1	Prime	Deficient
1628	1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628	12	3192	1564	Composite	Deficient
1629	1, 3, 9, 181, 543, 1629	6	2366	737	Composite	Deficient
1630	1, 2, 5, 10, 163, 326, 815, 1630	8	2952	1322	Composite	Deficient
1631	1, 7, 233, 1631	4	1872	241	Composite	Deficient
1632	1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 68, 96, 102, 136, 204, 272, 408, 544, 816, 1632	24	4536	2904	Composite	Abundant
1633	1, 23, 71, 1633	4	1728	95	Composite	Deficient
1634	1, 2, 19, 38, 43, 86, 817, 1634	8	2640	1006	Composite	Deficient
1635	1, 3, 5, 15, 109, 327, 545, 1635	8	2640	1005	Composite	Deficient
1636	1, 2, 4, 409, 818, 1636	6	2870	1234	Composite	Deficient
1637	1, 1637	2	1638	1	Prime	Deficient
1638	1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638	24	4368	2730	Composite	Abundant
1639	1, 11, 149, 1639	4	1800	161	Composite	Deficient
1640	1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640	16	3780	2140	Composite	Abundant
1641	1, 3, 547, 1641	4	2192	551	Composite	Deficient
1642	1, 2, 821, 1642	4	2466	824	Composite	Deficient
1643	1, 31, 53, 1643	4	1728	85	Composite	Deficient
1644	1, 2, 3, 4, 6, 12, 137, 274, 411, 548, 822, 1644	12	3864	2220	Composite	Abundant
1645	1, 5, 7, 35, 47, 235, 329, 1645	8	2304	659	Composite	Deficient
1646	1, 2, 823, 1646	4	2472	826	Composite	Deficient
1647	1, 3, 9, 27, 61, 183, 549, 1647	8	2480	833	Composite	Deficient
1648	1, 2, 4, 8, 16, 103, 206, 412, 824, 1648	10	3224	1576	Composite	Deficient
1649	1, 17, 97, 1649	4	1764	115	Composite	Deficient
1650	1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 150, 165, 275, 330, 550, 825, 1650	24	4464	2814	Composite	Abundant
1651	1, 13, 127, 1651	4	1792	141	Composite	Deficient
1652	1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652	12	3360	1708	Composite	Abundant
1653	1, 3, 19, 29, 57, 87, 551, 1653	8	2400	747	Composite	Deficient
1654	1, 2, 827, 1654	4	2484	830	Composite	Deficient
1655	1, 5, 331, 1655	4	1992	337	Composite	Deficient
1656	1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656	24	4680	3024	Composite	Abundant
1657	1, 1657	2	1658	1	Prime	Deficient
1658	1, 2, 829, 1658	4	2490	832	Composite	Deficient
1659	1, 3, 7, 21, 79, 237, 553, 1659	8	2560	901	Composite	Deficient
1660	1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660	12	3528	1868	Composite	Abundant
1661	1, 11, 151, 1661	4	1824	163	Composite	Deficient
1662	1, 2, 3, 6, 277, 554, 831, 1662	8	3336	1674	Composite	Abundant
1663	1, 1663	2	1664	1	Prime	Deficient
1664	1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664	16	3570	1906	Composite	Abundant
1665	1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665	12	2964	1299	Composite	Deficient
1666	1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666	12	3078	1412	Composite	Deficient
1667	1, 1667	2	1668	1	Prime	Deficient
1668	1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668	12	3920	2252	Composite	Abundant
1669	1, 1669	2	1670	1	Prime	Deficient
1670	1, 2, 5, 10, 167, 334, 835, 1670	8	3024	1354	Composite	Deficient
1671	1, 3, 557, 1671	4	2232	561	Composite	Deficient
1672	1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672	16	3600	1928	Composite	Abundant
1673	1, 7, 239, 1673	4	1920	247	Composite	Deficient
1674	1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 93, 186, 279, 558, 837, 1674	16	3840	2166	Composite	Abundant
1675	1, 5, 25, 67, 335, 1675	6	2108	433	Composite	Deficient
1676	1, 2, 4, 419, 838, 1676	6	2940	1264	Composite	Deficient
1677	1, 3, 13, 39, 43, 129, 559, 1677	8	2464	787	Composite	Deficient
1678	1, 2, 839, 1678	4	2520	842	Composite	Deficient
1679	1, 23, 73, 1679	4	1776	97	Composite	Deficient
1680	1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680	40	5952	4272	Composite	Abundant
1681	1, 41, 1681	3	1723	42	Composite	Deficient
1682	1, 2, 29, 58, 841, 1682	6	2613	931	Composite	Deficient
1683	1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683	12	2808	1125	Composite	Deficient
1684	1, 2, 4, 421, 842, 1684	6	2954	1270	Composite	Deficient
1685	1, 5, 337, 1685	4	2028	343	Composite	Deficient
1686	1, 2, 3, 6, 281, 562, 843, 1686	8	3384	1698	Composite	Abundant
1687	1, 7, 241, 1687	4	1936	249	Composite	Deficient
1688	1, 2, 4, 8, 211, 422, 844, 1688	8	3180	1492	Composite	Deficient
1689	1, 3, 563, 1689	4	2256	567	Composite	Deficient
1690	1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690	12	3294	1604	Composite	Deficient
1691	1, 19, 89, 1691	4	1800	109	Composite	Deficient
1692	1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692	18	4368	2676	Composite	Abundant
1693	1, 1693	2	1694	1	Prime	Deficient
1694	1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694	12	3192	1498	Composite	Deficient
1695	1, 3, 5, 15, 113, 339, 565, 1695	8	2736	1041	Composite	Deficient
1696	1, 2, 4, 8, 16, 32, 53, 106, 212, 424, 848, 1696	12	3402	1706	Composite	Abundant
1697	1, 1697	2	1698	1	Prime	Deficient
1698	1, 2, 3, 6, 283, 566, 849, 1698	8	3408	1710	Composite	Abundant
1699	1, 1699	2	1700	1	Prime	Deficient
1700	1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700	18	3906	2206	Composite	Abundant