205204225

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 258967800

約数和(自身を除く): 53763575

約数列:

[1, 5, 25, 101, 181, 449, 505, 905, 2245, 2525, 4525, 11225, 18281, 45349, 81269, 91405, 226745, 406345, 457025, 1133725, 2031725, 8208169, 41040845, 205204225]

約数ペア:

[(1, 205204225), (5, 41040845), (25, 8208169), (101, 2031725), (181, 1133725), (449, 457025), (505, 406345), (905, 226745), (2245, 91405), (2525, 81269), (4525, 45349), (11225, 18281)]