209391820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{951781}}^1$

素因数の和:951801

約数の個数: 24

約数和(自身を含む): 479698128

約数和(自身を除く): 270306308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 951781, 1903562, 3807124, 4758905, 9517810, 10469591, 19035620, 20939182, 41878364, 52347955, 104695910, 209391820]

約数ペア:

[(1, 209391820), (2, 104695910), (4, 52347955), (5, 41878364), (10, 20939182), (11, 19035620), (20, 10469591), (22, 9517810), (44, 4758905), (55, 3807124), (110, 1903562), (220, 951781)]