205389905

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{308857}}^1$

素因数の和:308888

約数の個数: 16

約数和(自身を含む): 296503680

約数和(自身を除く): 91113775

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 308857, 1544285, 2161999, 5868283, 10809995, 29341415, 41077981, 205389905]

約数ペア:

[(1, 205389905), (5, 41077981), (7, 29341415), (19, 10809995), (35, 5868283), (95, 2161999), (133, 1544285), (665, 308857)]