20990220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349837}}^1$

素因数の和:349849

約数の個数: 24

約数和(自身を含む): 58772784

約数和(自身を除く): 37782564

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349837, 699674, 1049511, 1399348, 1749185, 2099022, 3498370, 4198044, 5247555, 6996740, 10495110, 20990220]

約数ペア:

[(1, 20990220), (2, 10495110), (3, 6996740), (4, 5247555), (5, 4198044), (6, 3498370), (10, 2099022), (12, 1749185), (15, 1399348), (20, 1049511), (30, 699674), (60, 349837)]