42122540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10691}}^1$

素因数の和:10897

約数の個数: 24

約数和(自身を含む): 88914672

約数和(自身を除く): 46792132

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10691, 21382, 42764, 53455, 106910, 213820, 2106127, 4212254, 8424508, 10530635, 21061270, 42122540]

約数ペア:

[(1, 42122540), (2, 21061270), (4, 10530635), (5, 8424508), (10, 4212254), (20, 2106127), (197, 213820), (394, 106910), (788, 53455), (985, 42764), (1970, 21382), (3940, 10691)]