72400525

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{163}}^2$

素因数の和:445

約数の個数: 18

約数和(自身を含む): 91159530

約数和(自身を除く): 18759005

約数列:

[1, 5, 25, 109, 163, 545, 815, 2725, 4075, 17767, 26569, 88835, 132845, 444175, 664225, 2896021, 14480105, 72400525]

約数ペア:

[(1, 72400525), (5, 14480105), (25, 2896021), (109, 664225), (163, 444175), (545, 132845), (815, 88835), (2725, 26569), (4075, 17767)]