18854913745

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{677}}^1\times {\mathrm{1319}}^1$

素因数の和:2145

約数の個数: 32

約数和(自身を含む): 23455111680

約数和(自身を除く): 4600197935

約数列:

[1, 5, 41, 103, 205, 515, 677, 1319, 3385, 4223, 6595, 21115, 27757, 54079, 69731, 135857, 138785, 270395, 348655, 679285, 892963, 2858971, 4464815, 5570137, 14294855, 27850685, 36611483, 91975189, 183057415, 459875945, 3770982749, 18854913745]

約数ペア:

[(1, 18854913745), (5, 3770982749), (41, 459875945), (103, 183057415), (205, 91975189), (515, 36611483), (677, 27850685), (1319, 14294855), (3385, 5570137), (4223, 4464815), (6595, 2858971), (21115, 892963), (27757, 679285), (54079, 348655), (69731, 270395), (135857, 138785)]