20385527617820

素因数分解:

$2^2\times 5^1\times {\mathrm{75941}}^1\times {\mathrm{13421951}}^1$

素因数の和:13497901

約数の個数: 24

約数和(自身を含む): 42810174908928

約数和(自身を除く): 22424647291108

約数列:

[1, 2, 4, 5, 10, 20, 75941, 151882, 303764, 379705, 759410, 1518820, 13421951, 26843902, 53687804, 67109755, 134219510, 268439020, 1019276380891, 2038552761782, 4077105523564, 5096381904455, 10192763808910, 20385527617820]

約数ペア:

[(1, 20385527617820), (2, 10192763808910), (4, 5096381904455), (5, 4077105523564), (10, 2038552761782), (20, 1019276380891), (75941, 268439020), (151882, 134219510), (303764, 67109755), (379705, 53687804), (759410, 26843902), (1518820, 13421951)]