640490160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1171}}^1$

素因数の和:1283

約数の個数: 160

約数和(自身を含む): 2071795968

約数和(自身を除く): 1431305808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 53, 60, 80, 86, 106, 120, 129, 159, 172, 212, 215, 240, 258, 265, 318, 344, 424, 430, 516, 530, 636, 645, 688, 795, 848, 860, 1032, 1060, 1171, 1272, 1290, 1590, 1720, 2064, 2120, 2279, 2342, 2544, 2580, 3180, 3440, 3513, 4240, 4558, 4684, 5160, 5855, 6360, 6837, 7026, 9116, 9368, 10320, 11395, 11710, 12720, 13674, 14052, 17565, 18232, 18736, 22790, 23420, 27348, 28104, 34185, 35130, 36464, 45580, 46840, 50353, 54696, 56208, 62063, 68370, 70260, 91160, 93680, 100706, 109392, 124126, 136740, 140520, 151059, 182320, 186189, 201412, 248252, 251765, 273480, 281040, 302118, 310315, 372378, 402824, 496504, 503530, 546960, 604236, 620630, 744756, 755295, 805648, 930945, 993008, 1007060, 1208472, 1241260, 1489512, 1510590, 1861890, 2014120, 2416944, 2482520, 2668709, 2979024, 3021180, 3723780, 4028240, 4965040, 5337418, 6042360, 7447560, 8006127, 10674836, 12084720, 13343545, 14895120, 16012254, 21349672, 26687090, 32024508, 40030635, 42699344, 53374180, 64049016, 80061270, 106748360, 128098032, 160122540, 213496720, 320245080, 640490160]

約数ペア:

[(1, 640490160), (2, 320245080), (3, 213496720), (4, 160122540), (5, 128098032), (6, 106748360), (8, 80061270), (10, 64049016), (12, 53374180), (15, 42699344), (16, 40030635), (20, 32024508), (24, 26687090), (30, 21349672), (40, 16012254), (43, 14895120), (48, 13343545), (53, 12084720), (60, 10674836), (80, 8006127), (86, 7447560), (106, 6042360), (120, 5337418), (129, 4965040), (159, 4028240), (172, 3723780), (212, 3021180), (215, 2979024), (240, 2668709), (258, 2482520), (265, 2416944), (318, 2014120), (344, 1861890), (424, 1510590), (430, 1489512), (516, 1241260), (530, 1208472), (636, 1007060), (645, 993008), (688, 930945), (795, 805648), (848, 755295), (860, 744756), (1032, 620630), (1060, 604236), (1171, 546960), (1272, 503530), (1290, 496504), (1590, 402824), (1720, 372378), (2064, 310315), (2120, 302118), (2279, 281040), (2342, 273480), (2544, 251765), (2580, 248252), (3180, 201412), (3440, 186189), (3513, 182320), (4240, 151059), (4558, 140520), (4684, 136740), (5160, 124126), (5855, 109392), (6360, 100706), (6837, 93680), (7026, 91160), (9116, 70260), (9368, 68370), (10320, 62063), (11395, 56208), (11710, 54696), (12720, 50353), (13674, 46840), (14052, 45580), (17565, 36464), (18232, 35130), (18736, 34185), (22790, 28104), (23420, 27348)]