52428025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{12409}}^1$

素因数の和:12445

約数の個数: 18

約数和(自身を含む): 70401930

約数和(自身を除く): 17973905

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 12409, 62045, 161317, 310225, 806585, 2097121, 4032925, 10485605, 52428025]

約数ペア:

[(1, 52428025), (5, 10485605), (13, 4032925), (25, 2097121), (65, 806585), (169, 310225), (325, 161317), (845, 62045), (4225, 12409)]