20202640

素因数分解:

$2^4\times 5^1\times {\mathrm{252533}}^1$

素因数の和:252546

約数の個数: 20

約数和(自身を含む): 46971324

約数和(自身を除く): 26768684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252533, 505066, 1010132, 1262665, 2020264, 2525330, 4040528, 5050660, 10101320, 20202640]

約数ペア:

[(1, 20202640), (2, 10101320), (4, 5050660), (5, 4040528), (8, 2525330), (10, 2020264), (16, 1262665), (20, 1010132), (40, 505066), (80, 252533)]