8118125

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:470

約数の個数: 20

約数和(自身を含む): 10496640

約数和(自身を除く): 2378515

約数列:

[1, 5, 25, 31, 125, 155, 419, 625, 775, 2095, 3875, 10475, 12989, 19375, 52375, 64945, 261875, 324725, 1623625, 8118125]

約数ペア:

[(1, 8118125), (5, 1623625), (25, 324725), (31, 261875), (125, 64945), (155, 52375), (419, 19375), (625, 12989), (775, 10475), (2095, 3875)]