18508220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22571}}^1$

素因数の和:22621

約数の個数: 24

約数和(自身を含む): 39817008

約数和(自身を除く): 21308788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22571, 45142, 90284, 112855, 225710, 451420, 925411, 1850822, 3701644, 4627055, 9254110, 18508220]

約数ペア:

[(1, 18508220), (2, 9254110), (4, 4627055), (5, 3701644), (10, 1850822), (20, 925411), (41, 451420), (82, 225710), (164, 112855), (205, 90284), (410, 45142), (820, 22571)]