64719640

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{10859}}^1$

素因数の和:11019

約数の個数: 32

約数和(自身を含む): 146610000

約数和(自身を除く): 81890360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 10859, 21718, 43436, 54295, 86872, 108590, 217180, 434360, 1617991, 3235982, 6471964, 8089955, 12943928, 16179910, 32359820, 64719640]

約数ペア:

[(1, 64719640), (2, 32359820), (4, 16179910), (5, 12943928), (8, 8089955), (10, 6471964), (20, 3235982), (40, 1617991), (149, 434360), (298, 217180), (596, 108590), (745, 86872), (1192, 54295), (1490, 43436), (2980, 21718), (5960, 10859)]