388959620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{67763}}^1$

素因数の和:67820

約数の個数: 48

約数和(自身を含む): 956285568

約数和(自身を除く): 567325948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 5740, 67763, 135526, 271052, 338815, 474341, 677630, 948682, 1355260, 1897364, 2371705, 2778283, 4743410, 5556566, 9486820, 11113132, 13891415, 19447981, 27782830, 38895962, 55565660, 77791924, 97239905, 194479810, 388959620]

約数ペア:

[(1, 388959620), (2, 194479810), (4, 97239905), (5, 77791924), (7, 55565660), (10, 38895962), (14, 27782830), (20, 19447981), (28, 13891415), (35, 11113132), (41, 9486820), (70, 5556566), (82, 4743410), (140, 2778283), (164, 2371705), (205, 1897364), (287, 1355260), (410, 948682), (574, 677630), (820, 474341), (1148, 338815), (1435, 271052), (2870, 135526), (5740, 67763)]