428080

素因数分解:

$2^4\times 5^1\times {\mathrm{5351}}^1$

素因数の和:5364

約数の個数: 20

約数和(自身を含む): 995472

約数和(自身を除く): 567392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5351, 10702, 21404, 26755, 42808, 53510, 85616, 107020, 214040, 428080]

約数ペア:

[(1, 428080), (2, 214040), (4, 107020), (5, 85616), (8, 53510), (10, 42808), (16, 26755), (20, 21404), (40, 10702), (80, 5351)]