20782660

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{1109}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 43729560

約数和(自身を除く): 22946900

約数列:

[1, 2, 4, 5, 10, 20, 937, 1109, 1874, 2218, 3748, 4436, 4685, 5545, 9370, 11090, 18740, 22180, 1039133, 2078266, 4156532, 5195665, 10391330, 20782660]

約数ペア:

[(1, 20782660), (2, 10391330), (4, 5195665), (5, 4156532), (10, 2078266), (20, 1039133), (937, 22180), (1109, 18740), (1874, 11090), (2218, 9370), (3748, 5545), (4436, 4685)]