1289904642

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{997}}^1$

素因数の和:1137

約数の個数: 128

約数和(自身を含む): 3286214400

約数和(自身を除く): 1996309758

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 97, 114, 117, 171, 194, 234, 247, 291, 342, 351, 494, 513, 582, 702, 741, 873, 997, 1026, 1261, 1482, 1746, 1843, 1994, 2223, 2522, 2619, 2991, 3686, 3783, 4446, 5238, 5529, 5982, 6669, 7566, 8973, 11058, 11349, 12961, 13338, 16587, 17946, 18943, 22698, 23959, 25922, 26919, 33174, 34047, 37886, 38883, 47918, 49761, 53838, 56829, 68094, 71877, 77766, 96709, 99522, 113658, 116649, 143754, 170487, 193418, 215631, 233298, 246259, 290127, 340974, 349947, 431262, 492518, 511461, 580254, 646893, 699894, 738777, 870381, 1022922, 1257217, 1293786, 1477554, 1740762, 1837471, 2216331, 2514434, 2611143, 3674942, 3771651, 4432662, 5222286, 5512413, 6648993, 7543302, 11024826, 11314953, 13297986, 16537239, 22629906, 23887123, 33074478, 33944859, 47774246, 49611717, 67889718, 71661369, 99223434, 143322738, 214984107, 429968214, 644952321, 1289904642]

約数ペア:

[(1, 1289904642), (2, 644952321), (3, 429968214), (6, 214984107), (9, 143322738), (13, 99223434), (18, 71661369), (19, 67889718), (26, 49611717), (27, 47774246), (38, 33944859), (39, 33074478), (54, 23887123), (57, 22629906), (78, 16537239), (97, 13297986), (114, 11314953), (117, 11024826), (171, 7543302), (194, 6648993), (234, 5512413), (247, 5222286), (291, 4432662), (342, 3771651), (351, 3674942), (494, 2611143), (513, 2514434), (582, 2216331), (702, 1837471), (741, 1740762), (873, 1477554), (997, 1293786), (1026, 1257217), (1261, 1022922), (1482, 870381), (1746, 738777), (1843, 699894), (1994, 646893), (2223, 580254), (2522, 511461), (2619, 492518), (2991, 431262), (3686, 349947), (3783, 340974), (4446, 290127), (5238, 246259), (5529, 233298), (5982, 215631), (6669, 193418), (7566, 170487), (8973, 143754), (11058, 116649), (11349, 113658), (12961, 99522), (13338, 96709), (16587, 77766), (17946, 71877), (18943, 68094), (22698, 56829), (23959, 53838), (25922, 49761), (26919, 47918), (33174, 38883), (34047, 37886)]