28121380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200867}}^1$

素因数の和:200883

約数の個数: 24

約数和(自身を含む): 67491648

約数和(自身を除く): 39370268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200867, 401734, 803468, 1004335, 1406069, 2008670, 2812138, 4017340, 5624276, 7030345, 14060690, 28121380]

約数ペア:

[(1, 28121380), (2, 14060690), (4, 7030345), (5, 5624276), (7, 4017340), (10, 2812138), (14, 2008670), (20, 1406069), (28, 1004335), (35, 803468), (70, 401734), (140, 200867)]