128641180

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{23911}}^1$

素因数の和:24189

約数の個数: 24

約数和(自身を含む): 271162080

約数和(自身を除く): 142520900

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 23911, 47822, 95644, 119555, 239110, 478220, 6432059, 12864118, 25728236, 32160295, 64320590, 128641180]

約数ペア:

[(1, 128641180), (2, 64320590), (4, 32160295), (5, 25728236), (10, 12864118), (20, 6432059), (269, 478220), (538, 239110), (1076, 119555), (1345, 95644), (2690, 47822), (5380, 23911)]