205587060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{489493}}^1$

素因数の和:489512

約数の個数: 48

約数和(自身を含む): 657879936

約数和(自身を除く): 452292876

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 489493, 978986, 1468479, 1957972, 2447465, 2936958, 3426451, 4894930, 5873916, 6852902, 7342395, 9789860, 10279353, 13705804, 14684790, 17132255, 20558706, 29369580, 34264510, 41117412, 51396765, 68529020, 102793530, 205587060]

約数ペア:

[(1, 205587060), (2, 102793530), (3, 68529020), (4, 51396765), (5, 41117412), (6, 34264510), (7, 29369580), (10, 20558706), (12, 17132255), (14, 14684790), (15, 13705804), (20, 10279353), (21, 9789860), (28, 7342395), (30, 6852902), (35, 5873916), (42, 4894930), (60, 3426451), (70, 2936958), (84, 2447465), (105, 1957972), (140, 1468479), (210, 978986), (420, 489493)]