8257640

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{3499}}^1$

素因数の和:3569

約数の個数: 32

約数和(自身を含む): 18900000

約数和(自身を除く): 10642360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 3499, 6998, 13996, 17495, 27992, 34990, 69980, 139960, 206441, 412882, 825764, 1032205, 1651528, 2064410, 4128820, 8257640]

約数ペア:

[(1, 8257640), (2, 4128820), (4, 2064410), (5, 1651528), (8, 1032205), (10, 825764), (20, 412882), (40, 206441), (59, 139960), (118, 69980), (236, 34990), (295, 27992), (472, 17495), (590, 13996), (1180, 6998), (2360, 3499)]