18417620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5449}}^1$

素因数の和:5484

約数の個数: 36

約数和(自身を含む): 41888700

約数和(自身を除く): 23471080

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5449, 10898, 21796, 27245, 54490, 70837, 108980, 141674, 283348, 354185, 708370, 920881, 1416740, 1841762, 3683524, 4604405, 9208810, 18417620]

約数ペア:

[(1, 18417620), (2, 9208810), (4, 4604405), (5, 3683524), (10, 1841762), (13, 1416740), (20, 920881), (26, 708370), (52, 354185), (65, 283348), (130, 141674), (169, 108980), (260, 70837), (338, 54490), (676, 27245), (845, 21796), (1690, 10898), (3380, 5449)]