86845420

素因数分解:

$2^2\times 5^1\times {\mathrm{4342271}}^1$

素因数の和:4342280

約数の個数: 12

約数和(自身を含む): 182375424

約数和(自身を除く): 95530004

約数列:

[1, 2, 4, 5, 10, 20, 4342271, 8684542, 17369084, 21711355, 43422710, 86845420]

約数ペア:

[(1, 86845420), (2, 43422710), (4, 21711355), (5, 17369084), (10, 8684542), (20, 4342271)]