201911080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{721111}}^1$

素因数の和:721129

約数の個数: 32

約数和(自身を含む): 519200640

約数和(自身を除く): 317289560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 721111, 1442222, 2884444, 3605555, 5047777, 5768888, 7211110, 10095554, 14422220, 20191108, 25238885, 28844440, 40382216, 50477770, 100955540, 201911080]

約数ペア:

[(1, 201911080), (2, 100955540), (4, 50477770), (5, 40382216), (7, 28844440), (8, 25238885), (10, 20191108), (14, 14422220), (20, 10095554), (28, 7211110), (35, 5768888), (40, 5047777), (56, 3605555), (70, 2884444), (140, 1442222), (280, 721111)]