64281625

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{7243}}^1$

素因数の和:7329

約数の個数: 16

約数和(自身を含む): 81364608

約数和(自身を除く): 17082983

約数列:

[1, 5, 25, 71, 125, 355, 1775, 7243, 8875, 36215, 181075, 514253, 905375, 2571265, 12856325, 64281625]

約数ペア:

[(1, 64281625), (5, 12856325), (25, 2571265), (71, 905375), (125, 514253), (355, 181075), (1775, 36215), (7243, 8875)]