91011875

素因数分解:

$5^4\times {\mathrm{223}}^1\times {\mathrm{653}}^1$

素因数の和:896

約数の個数: 20

約数和(自身を含む): 114413376

約数和(自身を除く): 23401501

約数列:

[1, 5, 25, 125, 223, 625, 653, 1115, 3265, 5575, 16325, 27875, 81625, 139375, 145619, 408125, 728095, 3640475, 18202375, 91011875]

約数ペア:

[(1, 91011875), (5, 18202375), (25, 3640475), (125, 728095), (223, 408125), (625, 145619), (653, 139375), (1115, 81625), (3265, 27875), (5575, 16325)]