9861875

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:560

約数の個数: 20

約数和(自身を含む): 12745920

約数和(自身を除く): 2884045

約数列:

[1, 5, 25, 31, 125, 155, 509, 625, 775, 2545, 3875, 12725, 15779, 19375, 63625, 78895, 318125, 394475, 1972375, 9861875]

約数ペア:

[(1, 9861875), (5, 1972375), (25, 394475), (31, 318125), (125, 78895), (155, 63625), (509, 19375), (625, 15779), (775, 12725), (2545, 3875)]