8077820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9851}}^1$

素因数の和:9901

約数の個数: 24

約数和(自身を含む): 17378928

約数和(自身を除く): 9301108

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9851, 19702, 39404, 49255, 98510, 197020, 403891, 807782, 1615564, 2019455, 4038910, 8077820]

約数ペア:

[(1, 8077820), (2, 4038910), (4, 2019455), (5, 1615564), (10, 807782), (20, 403891), (41, 197020), (82, 98510), (164, 49255), (205, 39404), (410, 19702), (820, 9851)]