28457744

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 68090880

約数和(自身を除く): 39633136

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 43, 56, 76, 86, 112, 133, 152, 172, 266, 301, 304, 311, 344, 532, 602, 622, 688, 817, 1064, 1204, 1244, 1634, 2128, 2177, 2408, 2488, 3268, 4354, 4816, 4976, 5719, 5909, 6536, 8708, 11438, 11818, 13072, 13373, 17416, 22876, 23636, 26746, 34832, 41363, 45752, 47272, 53492, 82726, 91504, 93611, 94544, 106984, 165452, 187222, 213968, 254087, 330904, 374444, 508174, 661808, 748888, 1016348, 1497776, 1778609, 2032696, 3557218, 4065392, 7114436, 14228872, 28457744]

約数ペア:

[(1, 28457744), (2, 14228872), (4, 7114436), (7, 4065392), (8, 3557218), (14, 2032696), (16, 1778609), (19, 1497776), (28, 1016348), (38, 748888), (43, 661808), (56, 508174), (76, 374444), (86, 330904), (112, 254087), (133, 213968), (152, 187222), (172, 165452), (266, 106984), (301, 94544), (304, 93611), (311, 91504), (344, 82726), (532, 53492), (602, 47272), (622, 45752), (688, 41363), (817, 34832), (1064, 26746), (1204, 23636), (1244, 22876), (1634, 17416), (2128, 13373), (2177, 13072), (2408, 11818), (2488, 11438), (3268, 8708), (4354, 6536), (4816, 5909), (4976, 5719)]