205121889

素因数分解:

$3^5\times 7^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 96

約数和(自身を含む): 377395200

約数和(自身を除く): 172273311

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 81, 107, 147, 161, 189, 207, 243, 321, 343, 441, 483, 567, 621, 749, 963, 1029, 1127, 1323, 1449, 1701, 1863, 2247, 2461, 2889, 3087, 3381, 3969, 4347, 5243, 5589, 6741, 7383, 7889, 8667, 9261, 10143, 11907, 13041, 15729, 17227, 20223, 22149, 23667, 26001, 27783, 30429, 36701, 39123, 47187, 51681, 60669, 66447, 71001, 83349, 91287, 110103, 120589, 141561, 155043, 182007, 199341, 213003, 273861, 330309, 361767, 424683, 465129, 598023, 639009, 844123, 990927, 1085301, 1274049, 1395387, 1917027, 2532369, 2972781, 3255903, 4186161, 7597107, 8918343, 9767709, 22791321, 29303127, 68373963, 205121889]

約数ペア:

[(1, 205121889), (3, 68373963), (7, 29303127), (9, 22791321), (21, 9767709), (23, 8918343), (27, 7597107), (49, 4186161), (63, 3255903), (69, 2972781), (81, 2532369), (107, 1917027), (147, 1395387), (161, 1274049), (189, 1085301), (207, 990927), (243, 844123), (321, 639009), (343, 598023), (441, 465129), (483, 424683), (567, 361767), (621, 330309), (749, 273861), (963, 213003), (1029, 199341), (1127, 182007), (1323, 155043), (1449, 141561), (1701, 120589), (1863, 110103), (2247, 91287), (2461, 83349), (2889, 71001), (3087, 66447), (3381, 60669), (3969, 51681), (4347, 47187), (5243, 39123), (5589, 36701), (6741, 30429), (7383, 27783), (7889, 26001), (8667, 23667), (9261, 22149), (10143, 20223), (11907, 17227), (13041, 15729)]