28117740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66947}}^1$

素因数の和:66966

約数の個数: 48

約数和(自身を含む): 89978112

約数和(自身を除く): 61860372

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, 66947, 133894, 200841, 267788, 334735, 401682, 468629, 669470, 803364, 937258, 1004205, 1338940, 1405887, 1874516, 2008410, 2343145, 2811774, 4016820, 4686290, 5623548, 7029435, 9372580, 14058870, 28117740]

約数ペア:

[(1, 28117740), (2, 14058870), (3, 9372580), (4, 7029435), (5, 5623548), (6, 4686290), (7, 4016820), (10, 2811774), (12, 2343145), (14, 2008410), (15, 1874516), (20, 1405887), (21, 1338940), (28, 1004205), (30, 937258), (35, 803364), (42, 669470), (60, 468629), (70, 401682), (84, 334735), (105, 267788), (140, 200841), (210, 133894), (420, 66947)]