80754640

素因数分解:

$2^4\times 5^1\times {\mathrm{1009433}}^1$

素因数の和:1009446

約数の個数: 20

約数和(自身を含む): 187754724

約数和(自身を除く): 107000084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1009433, 2018866, 4037732, 5047165, 8075464, 10094330, 16150928, 20188660, 40377320, 80754640]

約数ペア:

[(1, 80754640), (2, 40377320), (4, 20188660), (5, 16150928), (8, 10094330), (10, 8075464), (16, 5047165), (20, 4037732), (40, 2018866), (80, 1009433)]