20576225

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 26750520

約数和(自身を除く): 6174295

約数列:

[1, 5, 25, 29, 101, 145, 281, 505, 725, 1405, 2525, 2929, 7025, 8149, 14645, 28381, 40745, 73225, 141905, 203725, 709525, 823049, 4115245, 20576225]

約数ペア:

[(1, 20576225), (5, 4115245), (25, 823049), (29, 709525), (101, 203725), (145, 141905), (281, 73225), (505, 40745), (725, 28381), (1405, 14645), (2525, 8149), (2929, 7025)]