68167640

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3271}}^1$

素因数の和:3803

約数の個数: 32

約数和(自身を含む): 153718560

約数和(自身を除く): 85550920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 3271, 4168, 5210, 6542, 10420, 13084, 16355, 20840, 26168, 32710, 65420, 130840, 1704191, 3408382, 6816764, 8520955, 13633528, 17041910, 34083820, 68167640]

約数ペア:

[(1, 68167640), (2, 34083820), (4, 17041910), (5, 13633528), (8, 8520955), (10, 6816764), (20, 3408382), (40, 1704191), (521, 130840), (1042, 65420), (2084, 32710), (2605, 26168), (3271, 20840), (4168, 16355), (5210, 13084), (6542, 10420)]