2005307560

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{4259}}^1$

素因数の和:4498

約数の個数: 64

約数和(自身を含む): 4600800000

約数和(自身を除く): 2595492440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 149, 158, 298, 316, 395, 596, 632, 745, 790, 1192, 1490, 1580, 2980, 3160, 4259, 5960, 8518, 11771, 17036, 21295, 23542, 34072, 42590, 47084, 58855, 85180, 94168, 117710, 170360, 235420, 336461, 470840, 634591, 672922, 1269182, 1345844, 1682305, 2538364, 2691688, 3172955, 3364610, 5076728, 6345910, 6729220, 12691820, 13458440, 25383640, 50132689, 100265378, 200530756, 250663445, 401061512, 501326890, 1002653780, 2005307560]

約数ペア:

[(1, 2005307560), (2, 1002653780), (4, 501326890), (5, 401061512), (8, 250663445), (10, 200530756), (20, 100265378), (40, 50132689), (79, 25383640), (149, 13458440), (158, 12691820), (298, 6729220), (316, 6345910), (395, 5076728), (596, 3364610), (632, 3172955), (745, 2691688), (790, 2538364), (1192, 1682305), (1490, 1345844), (1580, 1269182), (2980, 672922), (3160, 634591), (4259, 470840), (5960, 336461), (8518, 235420), (11771, 170360), (17036, 117710), (21295, 94168), (23542, 85180), (34072, 58855), (42590, 47084)]