13377820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9421}}^1$

素因数の和:9501

約数の個数: 24

約数和(自身を含む): 28492128

約数和(自身を除く): 15114308

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 9421, 18842, 37684, 47105, 94210, 188420, 668891, 1337782, 2675564, 3344455, 6688910, 13377820]

約数ペア:

[(1, 13377820), (2, 6688910), (4, 3344455), (5, 2675564), (10, 1337782), (20, 668891), (71, 188420), (142, 94210), (284, 47105), (355, 37684), (710, 18842), (1420, 9421)]