212620225

素因数分解:

$5^2\times {\mathrm{127}}^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 267982848

約数和(自身を除く): 55362623

約数列:

[1, 5, 25, 127, 167, 401, 635, 835, 2005, 3175, 4175, 10025, 21209, 50927, 66967, 106045, 254635, 334835, 530225, 1273175, 1674175, 8504809, 42524045, 212620225]

約数ペア:

[(1, 212620225), (5, 42524045), (25, 8504809), (127, 1674175), (167, 1273175), (401, 530225), (635, 334835), (835, 254635), (2005, 106045), (3175, 66967), (4175, 50927), (10025, 21209)]