645613225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{890501}}^1$

素因数の和:890540

約数の個数: 12

約数和(自身を含む): 828166860

約数和(自身を除く): 182553635

約数列:

[1, 5, 25, 29, 145, 725, 890501, 4452505, 22262525, 25824529, 129122645, 645613225]

約数ペア:

[(1, 645613225), (5, 129122645), (25, 25824529), (29, 22262525), (145, 4452505), (725, 890501)]