18996880660

素因数分解:

$2^2\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{443231}}^1$

素因数の和:445383

約数の個数: 24

約数和(自身を含む): 39912155136

約数和(自身を除く): 20915274476

約数列:

[1, 2, 4, 5, 10, 20, 2143, 4286, 8572, 10715, 21430, 42860, 443231, 886462, 1772924, 2216155, 4432310, 8864620, 949844033, 1899688066, 3799376132, 4749220165, 9498440330, 18996880660]

約数ペア:

[(1, 18996880660), (2, 9498440330), (4, 4749220165), (5, 3799376132), (10, 1899688066), (20, 949844033), (2143, 8864620), (4286, 4432310), (8572, 2216155), (10715, 1772924), (21430, 886462), (42860, 443231)]