208297740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{495947}}^1$

素因数の和:495966

約数の個数: 48

約数和(自身を含む): 666554112

約数和(自身を除く): 458256372

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, 495947, 991894, 1487841, 1983788, 2479735, 2975682, 3471629, 4959470, 5951364, 6943258, 7439205, 9918940, 10414887, 13886516, 14878410, 17358145, 20829774, 29756820, 34716290, 41659548, 52074435, 69432580, 104148870, 208297740]

約数ペア:

[(1, 208297740), (2, 104148870), (3, 69432580), (4, 52074435), (5, 41659548), (6, 34716290), (7, 29756820), (10, 20829774), (12, 17358145), (14, 14878410), (15, 13886516), (20, 10414887), (21, 9918940), (28, 7439205), (30, 6943258), (35, 5951364), (42, 4959470), (60, 3471629), (70, 2975682), (84, 2479735), (105, 1983788), (140, 1487841), (210, 991894), (420, 495947)]