131612975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{31151}}^1$

素因数の和:31187

約数の個数: 18

約数和(自身を含む): 176725296

約数和(自身を除く): 45112321

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 31151, 155755, 404963, 778775, 2024815, 5264519, 10124075, 26322595, 131612975]

約数ペア:

[(1, 131612975), (5, 26322595), (13, 10124075), (25, 5264519), (65, 2024815), (169, 778775), (325, 404963), (845, 155755), (4225, 31151)]