640730493

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 112

約数和(自身を含む): 1133694576

約数和(自身を除く): 492964083

約数列:

[1, 3, 9, 13, 17, 27, 39, 41, 51, 81, 97, 117, 123, 153, 221, 243, 291, 351, 369, 459, 533, 663, 697, 729, 873, 1053, 1107, 1261, 1377, 1599, 1649, 1989, 2091, 2619, 3159, 3321, 3783, 3977, 4131, 4797, 4947, 5967, 6273, 7857, 9061, 9477, 9963, 11349, 11931, 12393, 14391, 14841, 17901, 18819, 21437, 23571, 27183, 29889, 34047, 35793, 43173, 44523, 51701, 53703, 56457, 64311, 67609, 70713, 81549, 102141, 107379, 129519, 133569, 155103, 161109, 169371, 192933, 202827, 244647, 306423, 322137, 388557, 400707, 465309, 508113, 578799, 608481, 733941, 878917, 919269, 966411, 1202121, 1395927, 1736397, 1825443, 2201823, 2636751, 2899233, 4187781, 5209191, 5476329, 6605469, 7910253, 12563343, 15627573, 16428987, 23730759, 37690029, 49286961, 71192277, 213576831, 640730493]

約数ペア:

[(1, 640730493), (3, 213576831), (9, 71192277), (13, 49286961), (17, 37690029), (27, 23730759), (39, 16428987), (41, 15627573), (51, 12563343), (81, 7910253), (97, 6605469), (117, 5476329), (123, 5209191), (153, 4187781), (221, 2899233), (243, 2636751), (291, 2201823), (351, 1825443), (369, 1736397), (459, 1395927), (533, 1202121), (663, 966411), (697, 919269), (729, 878917), (873, 733941), (1053, 608481), (1107, 578799), (1261, 508113), (1377, 465309), (1599, 400707), (1649, 388557), (1989, 322137), (2091, 306423), (2619, 244647), (3159, 202827), (3321, 192933), (3783, 169371), (3977, 161109), (4131, 155103), (4797, 133569), (4947, 129519), (5967, 107379), (6273, 102141), (7857, 81549), (9061, 70713), (9477, 67609), (9963, 64311), (11349, 56457), (11931, 53703), (12393, 51701), (14391, 44523), (14841, 43173), (17901, 35793), (18819, 34047), (21437, 29889), (23571, 27183)]