20258315

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7517}}^1$

素因数の和:7547

約数の個数: 24

約数和(自身を含む): 30853872

約数和(自身を除く): 10595557

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 7517, 37585, 52619, 82687, 263095, 368333, 413435, 578809, 1841665, 2894045, 4051663, 20258315]

約数ペア:

[(1, 20258315), (5, 4051663), (7, 2894045), (11, 1841665), (35, 578809), (49, 413435), (55, 368333), (77, 263095), (245, 82687), (385, 52619), (539, 37585), (2695, 7517)]