381220225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{3529}}^1$

素因数の和:3717

約数の個数: 24

約数和(自身を含む): 492435000

約数和(自身を除く): 111214775

約数列:

[1, 5, 25, 29, 145, 149, 725, 745, 3529, 3725, 4321, 17645, 21605, 88225, 102341, 108025, 511705, 525821, 2558525, 2629105, 13145525, 15248809, 76244045, 381220225]

約数ペア:

[(1, 381220225), (5, 76244045), (25, 15248809), (29, 13145525), (145, 2629105), (149, 2558525), (725, 525821), (745, 511705), (3529, 108025), (3725, 102341), (4321, 88225), (17645, 21605)]