83645420

素因数分解:

$2^2\times 5^1\times {\mathrm{4182271}}^1$

素因数の和:4182280

約数の個数: 12

約数和(自身を含む): 175655424

約数和(自身を除く): 92010004

約数列:

[1, 2, 4, 5, 10, 20, 4182271, 8364542, 16729084, 20911355, 41822710, 83645420]

約数ペア:

[(1, 83645420), (2, 41822710), (4, 20911355), (5, 16729084), (10, 8364542), (20, 4182271)]