20395340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145681}}^1$

素因数の和:145697

約数の個数: 24

約数和(自身を含む): 48949152

約数和(自身を除く): 28553812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145681, 291362, 582724, 728405, 1019767, 1456810, 2039534, 2913620, 4079068, 5098835, 10197670, 20395340]

約数ペア:

[(1, 20395340), (2, 10197670), (4, 5098835), (5, 4079068), (7, 2913620), (10, 2039534), (14, 1456810), (20, 1019767), (28, 728405), (35, 582724), (70, 291362), (140, 145681)]