18852020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85691}}^1$

素因数の和:85711

約数の個数: 24

約数和(自身を含む): 43188768

約数和(自身を除く): 24336748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85691, 171382, 342764, 428455, 856910, 942601, 1713820, 1885202, 3770404, 4713005, 9426010, 18852020]

約数ペア:

[(1, 18852020), (2, 9426010), (4, 4713005), (5, 3770404), (10, 1885202), (11, 1713820), (20, 942601), (22, 856910), (44, 428455), (55, 342764), (110, 171382), (220, 85691)]