20048740

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1559}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 22146140

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 1559, 2572, 3118, 3215, 6236, 6430, 7795, 12860, 15590, 31180, 1002437, 2004874, 4009748, 5012185, 10024370, 20048740]

約数ペア:

[(1, 20048740), (2, 10024370), (4, 5012185), (5, 4009748), (10, 2004874), (20, 1002437), (643, 31180), (1286, 15590), (1559, 12860), (2572, 7795), (3118, 6430), (3215, 6236)]