20215702090

素因数分解:

$2^1\times 5^1\times {\mathrm{3881}}^1\times {\mathrm{520889}}^1$

素因数の和:524777

約数の個数: 16

約数和(自身を含む): 36397709640

約数和(自身を除く): 16182007550

約数列:

[1, 2, 5, 10, 3881, 7762, 19405, 38810, 520889, 1041778, 2604445, 5208890, 2021570209, 4043140418, 10107851045, 20215702090]

約数ペア:

[(1, 20215702090), (2, 10107851045), (5, 4043140418), (10, 2021570209), (3881, 5208890), (7762, 2604445), (19405, 1041778), (38810, 520889)]