20407728080

素因数分解:

$2^4\times 5^1\times {\mathrm{255096601}}^1$

素因数の和:255096614

約数の個数: 20

約数和(自身を含む): 47447967972

約数和(自身を除く): 27040239892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255096601, 510193202, 1020386404, 1275483005, 2040772808, 2550966010, 4081545616, 5101932020, 10203864040, 20407728080]

約数ペア:

[(1, 20407728080), (2, 10203864040), (4, 5101932020), (5, 4081545616), (8, 2550966010), (10, 2040772808), (16, 1275483005), (20, 1020386404), (40, 510193202), (80, 255096601)]