8156875

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:472

約数の個数: 20

約数和(自身を含む): 10546624

約数和(自身を除く): 2389749

約数列:

[1, 5, 25, 31, 125, 155, 421, 625, 775, 2105, 3875, 10525, 13051, 19375, 52625, 65255, 263125, 326275, 1631375, 8156875]

約数ペア:

[(1, 8156875), (5, 1631375), (25, 326275), (31, 263125), (125, 65255), (155, 52625), (421, 19375), (625, 13051), (775, 10525), (2105, 3875)]