77631875

素因数分解:

$5^4\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:800

約数の個数: 20

約数和(自身を含む): 97618752

約数和(自身を除く): 19986877

約数列:

[1, 5, 25, 125, 223, 557, 625, 1115, 2785, 5575, 13925, 27875, 69625, 124211, 139375, 348125, 621055, 3105275, 15526375, 77631875]

約数ペア:

[(1, 77631875), (5, 15526375), (25, 3105275), (125, 621055), (223, 348125), (557, 139375), (625, 124211), (1115, 69625), (2785, 27875), (5575, 13925)]