20002808

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 45144000

約数和(自身を除く): 25141192

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 109, 113, 116, 203, 218, 226, 232, 406, 436, 452, 763, 791, 812, 872, 904, 1526, 1582, 1624, 3052, 3161, 3164, 3277, 6104, 6322, 6328, 6554, 12317, 12644, 13108, 22127, 22939, 24634, 25288, 26216, 44254, 45878, 49268, 86219, 88508, 91756, 98536, 172438, 177016, 183512, 344876, 357193, 689752, 714386, 1428772, 2500351, 2857544, 5000702, 10001404, 20002808]

約数ペア:

[(1, 20002808), (2, 10001404), (4, 5000702), (7, 2857544), (8, 2500351), (14, 1428772), (28, 714386), (29, 689752), (56, 357193), (58, 344876), (109, 183512), (113, 177016), (116, 172438), (203, 98536), (218, 91756), (226, 88508), (232, 86219), (406, 49268), (436, 45878), (452, 44254), (763, 26216), (791, 25288), (812, 24634), (872, 22939), (904, 22127), (1526, 13108), (1582, 12644), (1624, 12317), (3052, 6554), (3161, 6328), (3164, 6322), (3277, 6104)]