28189315

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 17844605

約数列:

[1, 5, 7, 11, 17, 35, 55, 59, 73, 77, 85, 119, 187, 295, 365, 385, 413, 511, 595, 649, 803, 935, 1003, 1241, 1309, 2065, 2555, 3245, 4015, 4307, 4543, 5015, 5621, 6205, 6545, 7021, 8687, 11033, 13651, 21535, 22715, 28105, 30149, 35105, 43435, 47377, 55165, 68255, 73219, 77231, 95557, 150745, 236885, 331639, 366095, 386155, 477785, 512533, 805409, 1658195, 2562665, 4027045, 5637863, 28189315]

約数ペア:

[(1, 28189315), (5, 5637863), (7, 4027045), (11, 2562665), (17, 1658195), (35, 805409), (55, 512533), (59, 477785), (73, 386155), (77, 366095), (85, 331639), (119, 236885), (187, 150745), (295, 95557), (365, 77231), (385, 73219), (413, 68255), (511, 55165), (595, 47377), (649, 43435), (803, 35105), (935, 30149), (1003, 28105), (1241, 22715), (1309, 21535), (2065, 13651), (2555, 11033), (3245, 8687), (4015, 7021), (4307, 6545), (4543, 6205), (5015, 5621)]