8139640

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{3449}}^1$

素因数の和:3519

約数の個数: 32

約数和(自身を含む): 18630000

約数和(自身を除く): 10490360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 3449, 6898, 13796, 17245, 27592, 34490, 68980, 137960, 203491, 406982, 813964, 1017455, 1627928, 2034910, 4069820, 8139640]

約数ペア:

[(1, 8139640), (2, 4069820), (4, 2034910), (5, 1627928), (8, 1017455), (10, 813964), (20, 406982), (40, 203491), (59, 137960), (118, 68980), (236, 34490), (295, 27592), (472, 17245), (590, 13796), (1180, 6898), (2360, 3449)]