20572660

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9437}}^1$

素因数の和:9555

約数の個数: 24

約数和(自身を含む): 43603560

約数和(自身を除く): 23030900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9437, 18874, 37748, 47185, 94370, 188740, 1028633, 2057266, 4114532, 5143165, 10286330, 20572660]

約数ペア:

[(1, 20572660), (2, 10286330), (4, 5143165), (5, 4114532), (10, 2057266), (20, 1028633), (109, 188740), (218, 94370), (436, 47185), (545, 37748), (1090, 18874), (2180, 9437)]