18677620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71837}}^1$

素因数の和:71859

約数の個数: 24

約数和(自身を含む): 42240744

約数和(自身を除く): 23563124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71837, 143674, 287348, 359185, 718370, 933881, 1436740, 1867762, 3735524, 4669405, 9338810, 18677620]

約数ペア:

[(1, 18677620), (2, 9338810), (4, 4669405), (5, 3735524), (10, 1867762), (13, 1436740), (20, 933881), (26, 718370), (52, 359185), (65, 287348), (130, 143674), (260, 71837)]