20097725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1459}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 27156000

約数和(自身を除く): 7058275

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1459, 2755, 7295, 13775, 27721, 36475, 42311, 138605, 211555, 693025, 803909, 1057775, 4019545, 20097725]

約数ペア:

[(1, 20097725), (5, 4019545), (19, 1057775), (25, 803909), (29, 693025), (95, 211555), (145, 138605), (475, 42311), (551, 36475), (725, 27721), (1459, 13775), (2755, 7295)]