42725140

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{5381}}^1$

素因数の和:5787

約数の個数: 24

約数和(自身を含む): 89965512

約数和(自身を除く): 47240372

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 5381, 7940, 10762, 21524, 26905, 53810, 107620, 2136257, 4272514, 8545028, 10681285, 21362570, 42725140]

約数ペア:

[(1, 42725140), (2, 21362570), (4, 10681285), (5, 8545028), (10, 4272514), (20, 2136257), (397, 107620), (794, 53810), (1588, 26905), (1985, 21524), (3970, 10762), (5381, 7940)]