20785460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35837}}^1$

素因数の和:35875

約数の個数: 24

約数和(自身を含む): 45155880

約数和(自身を除く): 24370420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35837, 71674, 143348, 179185, 358370, 716740, 1039273, 2078546, 4157092, 5196365, 10392730, 20785460]

約数ペア:

[(1, 20785460), (2, 10392730), (4, 5196365), (5, 4157092), (10, 2078546), (20, 1039273), (29, 716740), (58, 358370), (116, 179185), (145, 143348), (290, 71674), (580, 35837)]