85325420

素因数分解:

$2^2\times 5^1\times {\mathrm{4266271}}^1$

素因数の和:4266280

約数の個数: 12

約数和(自身を含む): 179183424

約数和(自身を除く): 93858004

約数列:

[1, 2, 4, 5, 10, 20, 4266271, 8532542, 17065084, 21331355, 42662710, 85325420]

約数ペア:

[(1, 85325420), (2, 42662710), (4, 21331355), (5, 17065084), (10, 8532542), (20, 4266271)]