199599020

素因数分解:

$2^2\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{4657}}^1$

素因数の和:6809

約数の個数: 24

約数和(自身を含む): 419443584

約数和(自身を除く): 219844564

約数列:

[1, 2, 4, 5, 10, 20, 2143, 4286, 4657, 8572, 9314, 10715, 18628, 21430, 23285, 42860, 46570, 93140, 9979951, 19959902, 39919804, 49899755, 99799510, 199599020]

約数ペア:

[(1, 199599020), (2, 99799510), (4, 49899755), (5, 39919804), (10, 19959902), (20, 9979951), (2143, 93140), (4286, 46570), (4657, 42860), (8572, 23285), (9314, 21430), (10715, 18628)]