87159820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{396181}}^1$

素因数の和:396201

約数の個数: 24

約数和(自身を含む): 199675728

約数和(自身を除く): 112515908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 396181, 792362, 1584724, 1980905, 3961810, 4357991, 7923620, 8715982, 17431964, 21789955, 43579910, 87159820]

約数ペア:

[(1, 87159820), (2, 43579910), (4, 21789955), (5, 17431964), (10, 8715982), (11, 7923620), (20, 4357991), (22, 3961810), (44, 1980905), (55, 1584724), (110, 792362), (220, 396181)]