28913725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2099}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 39060000

約数和(自身を除く): 10146275

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 2099, 2755, 10495, 13775, 39881, 52475, 60871, 199405, 304355, 997025, 1156549, 1521775, 5782745, 28913725]

約数ペア:

[(1, 28913725), (5, 5782745), (19, 1521775), (25, 1156549), (29, 997025), (95, 304355), (145, 199405), (475, 60871), (551, 52475), (725, 39881), (2099, 13775), (2755, 10495)]