81126250

素因数分解:

$2^1\times 5^4\times {\mathrm{64901}}^1$

素因数の和:64923

約数の個数: 20

約数和(自身を含む): 152065386

約数和(自身を除く): 70939136

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 64901, 129802, 324505, 649010, 1622525, 3245050, 8112625, 16225250, 40563125, 81126250]

約数ペア:

[(1, 81126250), (2, 40563125), (5, 16225250), (10, 8112625), (25, 3245050), (50, 1622525), (125, 649010), (250, 324505), (625, 129802), (1250, 64901)]