20214820

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5237}}^1$

素因数の和:5439

約数の個数: 24

約数和(自身を含む): 42679224

約数和(自身を除く): 22464404

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 5237, 10474, 20948, 26185, 52370, 104740, 1010741, 2021482, 4042964, 5053705, 10107410, 20214820]

約数ペア:

[(1, 20214820), (2, 10107410), (4, 5053705), (5, 4042964), (10, 2021482), (20, 1010741), (193, 104740), (386, 52370), (772, 26185), (965, 20948), (1930, 10474), (3860, 5237)]