18690532225

素因数分解:

$5^2\times {\mathrm{1289}}^1\times {\mathrm{580001}}^1$

素因数の和:581300

約数の個数: 12

約数和(自身を含む): 23194279980

約数和(自身を除く): 4503747755

約数列:

[1, 5, 25, 1289, 6445, 32225, 580001, 2900005, 14500025, 747621289, 3738106445, 18690532225]

約数ペア:

[(1, 18690532225), (5, 3738106445), (25, 747621289), (1289, 14500025), (6445, 2900005), (32225, 580001)]