80907640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{183881}}^1$

素因数の和:183903

約数の個数: 32

約数和(自身を含む): 198592560

約数和(自身を除く): 117684920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 183881, 367762, 735524, 919405, 1471048, 1838810, 2022691, 3677620, 4045382, 7355240, 8090764, 10113455, 16181528, 20226910, 40453820, 80907640]

約数ペア:

[(1, 80907640), (2, 40453820), (4, 20226910), (5, 16181528), (8, 10113455), (10, 8090764), (11, 7355240), (20, 4045382), (22, 3677620), (40, 2022691), (44, 1838810), (55, 1471048), (88, 919405), (110, 735524), (220, 367762), (440, 183881)]