13287020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10891}}^1$

素因数の和:10961

約数の個数: 24

約数和(自身を含む): 28362768

約数和(自身を除く): 15075748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 10891, 21782, 43564, 54455, 108910, 217820, 664351, 1328702, 2657404, 3321755, 6643510, 13287020]

約数ペア:

[(1, 13287020), (2, 6643510), (4, 3321755), (5, 2657404), (10, 1328702), (20, 664351), (61, 217820), (122, 108910), (244, 54455), (305, 43564), (610, 21782), (1220, 10891)]