858125420

素因数分解:

$2^2\times 5^1\times {\mathrm{42906271}}^1$

素因数の和:42906280

約数の個数: 12

約数和(自身を含む): 1802063424

約数和(自身を除く): 943938004

約数列:

[1, 2, 4, 5, 10, 20, 42906271, 85812542, 171625084, 214531355, 429062710, 858125420]

約数ペア:

[(1, 858125420), (2, 429062710), (4, 214531355), (5, 171625084), (10, 85812542), (20, 42906271)]