638079120

素因数分解:

$2^4\times 3^7\times 5^1\times 7^1\times {\mathrm{521}}^1$

素因数の和:562

約数の個数: 320

約数和(自身を含む): 2547694080

約数和(自身を除く): 1909614960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 243, 252, 270, 280, 315, 324, 336, 360, 378, 405, 420, 432, 486, 504, 521, 540, 560, 567, 630, 648, 720, 729, 756, 810, 840, 945, 972, 1008, 1042, 1080, 1134, 1215, 1260, 1296, 1458, 1512, 1563, 1620, 1680, 1701, 1890, 1944, 2084, 2160, 2187, 2268, 2430, 2520, 2605, 2835, 2916, 3024, 3126, 3240, 3402, 3645, 3647, 3780, 3888, 4168, 4374, 4536, 4689, 4860, 5040, 5103, 5210, 5670, 5832, 6252, 6480, 6804, 7290, 7294, 7560, 7815, 8336, 8505, 8748, 9072, 9378, 9720, 10206, 10420, 10935, 10941, 11340, 11664, 12504, 13608, 14067, 14580, 14588, 15120, 15309, 15630, 17010, 17496, 18235, 18756, 19440, 20412, 20840, 21870, 21882, 22680, 23445, 25008, 25515, 27216, 28134, 29160, 29176, 30618, 31260, 32823, 34020, 34992, 36470, 37512, 40824, 41680, 42201, 43740, 43764, 45360, 46890, 51030, 54705, 56268, 58320, 58352, 61236, 62520, 65646, 68040, 70335, 72940, 75024, 76545, 81648, 84402, 87480, 87528, 93780, 98469, 102060, 109410, 112536, 122472, 125040, 126603, 131292, 136080, 140670, 145880, 153090, 164115, 168804, 174960, 175056, 187560, 196938, 204120, 211005, 218820, 225072, 244944, 253206, 262584, 281340, 291760, 295407, 306180, 328230, 337608, 375120, 379809, 393876, 408240, 422010, 437640, 492345, 506412, 525168, 562680, 590814, 612360, 633015, 656460, 675216, 759618, 787752, 844020, 875280, 886221, 984690, 1012824, 1125360, 1139427, 1181628, 1224720, 1266030, 1312920, 1477035, 1519236, 1575504, 1688040, 1772442, 1899045, 1969380, 2025648, 2278854, 2363256, 2532060, 2625840, 2658663, 2954070, 3038472, 3376080, 3544884, 3798090, 3938760, 4431105, 4557708, 4726512, 5064120, 5317326, 5697135, 5908140, 6076944, 7089768, 7596180, 7877520, 7975989, 8862210, 9115416, 10128240, 10634652, 11394270, 11816280, 13293315, 14179536, 15192360, 15951978, 17724420, 18230832, 21269304, 22788540, 23632560, 26586630, 30384720, 31903956, 35448840, 39879945, 42538608, 45577080, 53173260, 63807912, 70897680, 79759890, 91154160, 106346520, 127615824, 159519780, 212693040, 319039560, 638079120]

約数ペア:

[(1, 638079120), (2, 319039560), (3, 212693040), (4, 159519780), (5, 127615824), (6, 106346520), (7, 91154160), (8, 79759890), (9, 70897680), (10, 63807912), (12, 53173260), (14, 45577080), (15, 42538608), (16, 39879945), (18, 35448840), (20, 31903956), (21, 30384720), (24, 26586630), (27, 23632560), (28, 22788540), (30, 21269304), (35, 18230832), (36, 17724420), (40, 15951978), (42, 15192360), (45, 14179536), (48, 13293315), (54, 11816280), (56, 11394270), (60, 10634652), (63, 10128240), (70, 9115416), (72, 8862210), (80, 7975989), (81, 7877520), (84, 7596180), (90, 7089768), (105, 6076944), (108, 5908140), (112, 5697135), (120, 5317326), (126, 5064120), (135, 4726512), (140, 4557708), (144, 4431105), (162, 3938760), (168, 3798090), (180, 3544884), (189, 3376080), (210, 3038472), (216, 2954070), (240, 2658663), (243, 2625840), (252, 2532060), (270, 2363256), (280, 2278854), (315, 2025648), (324, 1969380), (336, 1899045), (360, 1772442), (378, 1688040), (405, 1575504), (420, 1519236), (432, 1477035), (486, 1312920), (504, 1266030), (521, 1224720), (540, 1181628), (560, 1139427), (567, 1125360), (630, 1012824), (648, 984690), (720, 886221), (729, 875280), (756, 844020), (810, 787752), (840, 759618), (945, 675216), (972, 656460), (1008, 633015), (1042, 612360), (1080, 590814), (1134, 562680), (1215, 525168), (1260, 506412), (1296, 492345), (1458, 437640), (1512, 422010), (1563, 408240), (1620, 393876), (1680, 379809), (1701, 375120), (1890, 337608), (1944, 328230), (2084, 306180), (2160, 295407), (2187, 291760), (2268, 281340), (2430, 262584), (2520, 253206), (2605, 244944), (2835, 225072), (2916, 218820), (3024, 211005), (3126, 204120), (3240, 196938), (3402, 187560), (3645, 175056), (3647, 174960), (3780, 168804), (3888, 164115), (4168, 153090), (4374, 145880), (4536, 140670), (4689, 136080), (4860, 131292), (5040, 126603), (5103, 125040), (5210, 122472), (5670, 112536), (5832, 109410), (6252, 102060), (6480, 98469), (6804, 93780), (7290, 87528), (7294, 87480), (7560, 84402), (7815, 81648), (8336, 76545), (8505, 75024), (8748, 72940), (9072, 70335), (9378, 68040), (9720, 65646), (10206, 62520), (10420, 61236), (10935, 58352), (10941, 58320), (11340, 56268), (11664, 54705), (12504, 51030), (13608, 46890), (14067, 45360), (14580, 43764), (14588, 43740), (15120, 42201), (15309, 41680), (15630, 40824), (17010, 37512), (17496, 36470), (18235, 34992), (18756, 34020), (19440, 32823), (20412, 31260), (20840, 30618), (21870, 29176), (21882, 29160), (22680, 28134), (23445, 27216), (25008, 25515)]