26980225

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{9901}}^1$

素因数の和:10020

約数の個数: 12

約数和(自身を含む): 33765820

約数和(自身を除く): 6785595

約数列:

[1, 5, 25, 109, 545, 2725, 9901, 49505, 247525, 1079209, 5396045, 26980225]

約数ペア:

[(1, 26980225), (5, 5396045), (25, 1079209), (109, 247525), (545, 49505), (2725, 9901)]