87029620

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{4391}}^1$

素因数の和:5391

約数の個数: 24

約数和(自身を含む): 182988288

約数和(自身を除く): 95958668

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4391, 4955, 8782, 9910, 17564, 19820, 21955, 43910, 87820, 4351481, 8702962, 17405924, 21757405, 43514810, 87029620]

約数ペア:

[(1, 87029620), (2, 43514810), (4, 21757405), (5, 17405924), (10, 8702962), (20, 4351481), (991, 87820), (1982, 43910), (3964, 21955), (4391, 19820), (4955, 17564), (8782, 9910)]