19934660

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2437}}^1$

素因数の和:2855

約数の個数: 24

約数和(自身を含む): 41982360

約数和(自身を除く): 22047700

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 2437, 4090, 4874, 8180, 9748, 12185, 24370, 48740, 996733, 1993466, 3986932, 4983665, 9967330, 19934660]

約数ペア:

[(1, 19934660), (2, 9967330), (4, 4983665), (5, 3986932), (10, 1993466), (20, 996733), (409, 48740), (818, 24370), (1636, 12185), (2045, 9748), (2437, 8180), (4090, 4874)]