639385488

素因数分解:

$2^4\times 3^6\times 7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:265

約数の個数: 280

約数和(自身を含む): 2185860096

約数和(自身を除く): 1546474608

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 41, 42, 48, 54, 56, 63, 72, 81, 82, 84, 108, 112, 123, 126, 144, 162, 164, 168, 189, 191, 216, 243, 246, 252, 287, 324, 328, 336, 369, 378, 382, 432, 486, 492, 504, 567, 573, 574, 648, 656, 729, 738, 756, 764, 861, 972, 984, 1008, 1107, 1134, 1146, 1148, 1296, 1337, 1458, 1476, 1512, 1528, 1701, 1719, 1722, 1944, 1968, 2214, 2268, 2292, 2296, 2583, 2674, 2916, 2952, 3024, 3056, 3321, 3402, 3438, 3444, 3888, 4011, 4428, 4536, 4584, 4592, 5103, 5157, 5166, 5348, 5832, 5904, 6642, 6804, 6876, 6888, 7749, 7831, 8022, 8856, 9072, 9168, 9963, 10206, 10314, 10332, 10696, 11664, 12033, 13284, 13608, 13752, 13776, 15471, 15498, 15662, 16044, 17712, 19926, 20412, 20628, 20664, 21392, 23247, 23493, 24066, 26568, 27216, 27504, 29889, 30942, 30996, 31324, 32088, 36099, 39852, 40824, 41256, 41328, 46413, 46494, 46986, 48132, 53136, 54817, 59778, 61884, 61992, 62648, 64176, 69741, 70479, 72198, 79704, 81648, 82512, 92826, 92988, 93972, 96264, 108297, 109634, 119556, 123768, 123984, 125296, 139239, 139482, 140958, 144396, 159408, 164451, 185652, 185976, 187944, 192528, 209223, 211437, 216594, 219268, 239112, 247536, 278478, 278964, 281916, 288792, 324891, 328902, 371304, 371952, 375888, 418446, 422874, 433188, 438536, 478224, 493353, 556956, 557928, 563832, 577584, 634311, 649782, 657804, 742608, 836892, 845748, 866376, 877072, 974673, 986706, 1113912, 1115856, 1127664, 1268622, 1299564, 1315608, 1480059, 1673784, 1691496, 1732752, 1902933, 1949346, 1973412, 2227824, 2537244, 2599128, 2631216, 2960118, 3347568, 3382992, 3805866, 3898692, 3946824, 4440177, 5074488, 5198256, 5708799, 5920236, 7611732, 7797384, 7893648, 8880354, 10148976, 11417598, 11840472, 13320531, 15223464, 15594768, 17760708, 22835196, 23680944, 26641062, 30446928, 35521416, 39961593, 45670392, 53282124, 71042832, 79923186, 91340784, 106564248, 159846372, 213128496, 319692744, 639385488]

約数ペア:

[(1, 639385488), (2, 319692744), (3, 213128496), (4, 159846372), (6, 106564248), (7, 91340784), (8, 79923186), (9, 71042832), (12, 53282124), (14, 45670392), (16, 39961593), (18, 35521416), (21, 30446928), (24, 26641062), (27, 23680944), (28, 22835196), (36, 17760708), (41, 15594768), (42, 15223464), (48, 13320531), (54, 11840472), (56, 11417598), (63, 10148976), (72, 8880354), (81, 7893648), (82, 7797384), (84, 7611732), (108, 5920236), (112, 5708799), (123, 5198256), (126, 5074488), (144, 4440177), (162, 3946824), (164, 3898692), (168, 3805866), (189, 3382992), (191, 3347568), (216, 2960118), (243, 2631216), (246, 2599128), (252, 2537244), (287, 2227824), (324, 1973412), (328, 1949346), (336, 1902933), (369, 1732752), (378, 1691496), (382, 1673784), (432, 1480059), (486, 1315608), (492, 1299564), (504, 1268622), (567, 1127664), (573, 1115856), (574, 1113912), (648, 986706), (656, 974673), (729, 877072), (738, 866376), (756, 845748), (764, 836892), (861, 742608), (972, 657804), (984, 649782), (1008, 634311), (1107, 577584), (1134, 563832), (1146, 557928), (1148, 556956), (1296, 493353), (1337, 478224), (1458, 438536), (1476, 433188), (1512, 422874), (1528, 418446), (1701, 375888), (1719, 371952), (1722, 371304), (1944, 328902), (1968, 324891), (2214, 288792), (2268, 281916), (2292, 278964), (2296, 278478), (2583, 247536), (2674, 239112), (2916, 219268), (2952, 216594), (3024, 211437), (3056, 209223), (3321, 192528), (3402, 187944), (3438, 185976), (3444, 185652), (3888, 164451), (4011, 159408), (4428, 144396), (4536, 140958), (4584, 139482), (4592, 139239), (5103, 125296), (5157, 123984), (5166, 123768), (5348, 119556), (5832, 109634), (5904, 108297), (6642, 96264), (6804, 93972), (6876, 92988), (6888, 92826), (7749, 82512), (7831, 81648), (8022, 79704), (8856, 72198), (9072, 70479), (9168, 69741), (9963, 64176), (10206, 62648), (10314, 61992), (10332, 61884), (10696, 59778), (11664, 54817), (12033, 53136), (13284, 48132), (13608, 46986), (13752, 46494), (13776, 46413), (15471, 41328), (15498, 41256), (15662, 40824), (16044, 39852), (17712, 36099), (19926, 32088), (20412, 31324), (20628, 30996), (20664, 30942), (21392, 29889), (23247, 27504), (23493, 27216), (24066, 26568)]