8165680

素因数分解:

$2^4\times 5^1\times {\mathrm{102071}}^1$

素因数の和:102084

約数の個数: 20

約数和(自身を含む): 18985392

約数和(自身を除く): 10819712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 102071, 204142, 408284, 510355, 816568, 1020710, 1633136, 2041420, 4082840, 8165680]

約数ペア:

[(1, 8165680), (2, 4082840), (4, 2041420), (5, 1633136), (8, 1020710), (10, 816568), (16, 510355), (20, 408284), (40, 204142), (80, 102071)]