129412816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{622177}}^1$

素因数の和:622198

約数の個数: 20

約数和(自身を含む): 270025252

約数和(自身を除く): 140612436

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 622177, 1244354, 2488708, 4977416, 8088301, 9954832, 16176602, 32353204, 64706408, 129412816]

約数ペア:

[(1, 129412816), (2, 64706408), (4, 32353204), (8, 16176602), (13, 9954832), (16, 8088301), (26, 4977416), (52, 2488708), (104, 1244354), (208, 622177)]