80768080

素因数分解:

$2^4\times 5^1\times {\mathrm{1009601}}^1$

素因数の和:1009614

約数の個数: 20

約数和(自身を含む): 187785972

約数和(自身を除く): 107017892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1009601, 2019202, 4038404, 5048005, 8076808, 10096010, 16153616, 20192020, 40384040, 80768080]

約数ペア:

[(1, 80768080), (2, 40384040), (4, 20192020), (5, 16153616), (8, 10096010), (10, 8076808), (16, 5048005), (20, 4038404), (40, 2019202), (80, 1009601)]