20418531840

素因数分解:

$2^9\times 3^7\times 5^1\times 7^1\times {\mathrm{521}}^1$

素因数の和:572

約数の個数: 640

約数和(自身を含む): 84073904640

約数和(自身を除く): 63655372800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 162, 168, 180, 189, 192, 210, 216, 224, 240, 243, 252, 256, 270, 280, 288, 315, 320, 324, 336, 360, 378, 384, 405, 420, 432, 448, 480, 486, 504, 512, 521, 540, 560, 567, 576, 630, 640, 648, 672, 720, 729, 756, 768, 810, 840, 864, 896, 945, 960, 972, 1008, 1042, 1080, 1120, 1134, 1152, 1215, 1260, 1280, 1296, 1344, 1440, 1458, 1512, 1536, 1563, 1620, 1680, 1701, 1728, 1792, 1890, 1920, 1944, 2016, 2084, 2160, 2187, 2240, 2268, 2304, 2430, 2520, 2560, 2592, 2605, 2688, 2835, 2880, 2916, 3024, 3126, 3240, 3360, 3402, 3456, 3584, 3645, 3647, 3780, 3840, 3888, 4032, 4168, 4320, 4374, 4480, 4536, 4608, 4689, 4860, 5040, 5103, 5184, 5210, 5376, 5670, 5760, 5832, 6048, 6252, 6480, 6720, 6804, 6912, 7290, 7294, 7560, 7680, 7776, 7815, 8064, 8336, 8505, 8640, 8748, 8960, 9072, 9378, 9720, 10080, 10206, 10368, 10420, 10752, 10935, 10941, 11340, 11520, 11664, 12096, 12504, 12960, 13440, 13608, 13824, 14067, 14580, 14588, 15120, 15309, 15552, 15630, 16128, 16672, 17010, 17280, 17496, 17920, 18144, 18235, 18756, 19440, 20160, 20412, 20736, 20840, 21870, 21882, 22680, 23040, 23328, 23445, 24192, 25008, 25515, 25920, 26880, 27216, 28134, 29160, 29176, 30240, 30618, 31104, 31260, 32256, 32823, 33344, 34020, 34560, 34992, 36288, 36470, 37512, 38880, 40320, 40824, 41472, 41680, 42201, 43740, 43764, 45360, 46656, 46890, 48384, 50016, 51030, 51840, 53760, 54432, 54705, 56268, 58320, 58352, 60480, 61236, 62208, 62520, 65646, 66688, 68040, 69120, 69984, 70335, 72576, 72940, 75024, 76545, 77760, 80640, 81648, 83360, 84402, 87480, 87528, 90720, 93312, 93780, 96768, 98469, 100032, 102060, 103680, 108864, 109410, 112536, 116640, 116704, 120960, 122472, 124416, 125040, 126603, 131292, 133376, 136080, 139968, 140670, 145152, 145880, 150048, 153090, 155520, 161280, 163296, 164115, 166720, 168804, 174960, 175056, 181440, 186624, 187560, 196938, 200064, 204120, 207360, 211005, 217728, 218820, 225072, 233280, 233408, 241920, 244944, 250080, 253206, 262584, 266752, 272160, 279936, 281340, 290304, 291760, 295407, 300096, 306180, 311040, 326592, 328230, 333440, 337608, 349920, 350112, 362880, 373248, 375120, 379809, 393876, 400128, 408240, 422010, 435456, 437640, 450144, 466560, 466816, 483840, 489888, 492345, 500160, 506412, 525168, 544320, 559872, 562680, 583520, 590814, 600192, 612360, 622080, 633015, 653184, 656460, 666880, 675216, 699840, 700224, 725760, 750240, 759618, 787752, 800256, 816480, 844020, 870912, 875280, 886221, 900288, 933120, 933632, 979776, 984690, 1000320, 1012824, 1050336, 1088640, 1119744, 1125360, 1139427, 1167040, 1181628, 1200384, 1224720, 1266030, 1306368, 1312920, 1333760, 1350432, 1399680, 1400448, 1451520, 1477035, 1500480, 1519236, 1575504, 1632960, 1688040, 1750560, 1772442, 1800576, 1866240, 1867264, 1899045, 1959552, 1969380, 2000640, 2025648, 2100672, 2177280, 2250720, 2278854, 2334080, 2363256, 2400768, 2449440, 2532060, 2612736, 2625840, 2658663, 2700864, 2799360, 2800896, 2954070, 3000960, 3038472, 3151008, 3265920, 3376080, 3501120, 3544884, 3601152, 3798090, 3919104, 3938760, 4001280, 4051296, 4201344, 4354560, 4431105, 4501440, 4557708, 4668160, 4726512, 4898880, 5064120, 5251680, 5317326, 5401728, 5598720, 5601792, 5697135, 5908140, 6001920, 6076944, 6302016, 6531840, 6752160, 7002240, 7089768, 7202304, 7596180, 7838208, 7877520, 7975989, 8102592, 8402688, 8862210, 9002880, 9115416, 9336320, 9453024, 9797760, 10128240, 10503360, 10634652, 10803456, 11394270, 11816280, 12003840, 12153888, 12604032, 13063680, 13293315, 13504320, 14004480, 14179536, 15192360, 15755040, 15951978, 16205184, 16805376, 17724420, 18005760, 18230832, 18906048, 19595520, 20256480, 21006720, 21269304, 21606912, 22788540, 23632560, 24307776, 25208064, 26586630, 27008640, 28008960, 28359072, 30384720, 31510080, 31903956, 32410368, 35448840, 36011520, 36461664, 37812096, 39191040, 39879945, 40512960, 42013440, 42538608, 45577080, 47265120, 48615552, 50416128, 53173260, 54017280, 56718144, 60769440, 63020160, 63807912, 64820736, 70897680, 72923328, 75624192, 79759890, 81025920, 84026880, 85077216, 91154160, 94530240, 97231104, 106346520, 108034560, 113436288, 121538880, 126040320, 127615824, 141795360, 145846656, 151248384, 159519780, 162051840, 170154432, 182308320, 189060480, 194462208, 212693040, 226872576, 243077760, 252080640, 255231648, 283590720, 291693312, 319039560, 324103680, 340308864, 364616640, 378120960, 425386080, 453745152, 486155520, 510463296, 567181440, 583386624, 638079120, 680617728, 729233280, 756241920, 850772160, 972311040, 1020926592, 1134362880, 1276158240, 1361235456, 1458466560, 1701544320, 2041853184, 2268725760, 2552316480, 2916933120, 3403088640, 4083706368, 5104632960, 6806177280, 10209265920, 20418531840]

約数ペア:

[(1, 20418531840), (2, 10209265920), (3, 6806177280), (4, 5104632960), (5, 4083706368), (6, 3403088640), (7, 2916933120), (8, 2552316480), (9, 2268725760), (10, 2041853184), (12, 1701544320), (14, 1458466560), (15, 1361235456), (16, 1276158240), (18, 1134362880), (20, 1020926592), (21, 972311040), (24, 850772160), (27, 756241920), (28, 729233280), (30, 680617728), (32, 638079120), (35, 583386624), (36, 567181440), (40, 510463296), (42, 486155520), (45, 453745152), (48, 425386080), (54, 378120960), (56, 364616640), (60, 340308864), (63, 324103680), (64, 319039560), (70, 291693312), (72, 283590720), (80, 255231648), (81, 252080640), (84, 243077760), (90, 226872576), (96, 212693040), (105, 194462208), (108, 189060480), (112, 182308320), (120, 170154432), (126, 162051840), (128, 159519780), (135, 151248384), (140, 145846656), (144, 141795360), (160, 127615824), (162, 126040320), (168, 121538880), (180, 113436288), (189, 108034560), (192, 106346520), (210, 97231104), (216, 94530240), (224, 91154160), (240, 85077216), (243, 84026880), (252, 81025920), (256, 79759890), (270, 75624192), (280, 72923328), (288, 70897680), (315, 64820736), (320, 63807912), (324, 63020160), (336, 60769440), (360, 56718144), (378, 54017280), (384, 53173260), (405, 50416128), (420, 48615552), (432, 47265120), (448, 45577080), (480, 42538608), (486, 42013440), (504, 40512960), (512, 39879945), (521, 39191040), (540, 37812096), (560, 36461664), (567, 36011520), (576, 35448840), (630, 32410368), (640, 31903956), (648, 31510080), (672, 30384720), (720, 28359072), (729, 28008960), (756, 27008640), (768, 26586630), (810, 25208064), (840, 24307776), (864, 23632560), (896, 22788540), (945, 21606912), (960, 21269304), (972, 21006720), (1008, 20256480), (1042, 19595520), (1080, 18906048), (1120, 18230832), (1134, 18005760), (1152, 17724420), (1215, 16805376), (1260, 16205184), (1280, 15951978), (1296, 15755040), (1344, 15192360), (1440, 14179536), (1458, 14004480), (1512, 13504320), (1536, 13293315), (1563, 13063680), (1620, 12604032), (1680, 12153888), (1701, 12003840), (1728, 11816280), (1792, 11394270), (1890, 10803456), (1920, 10634652), (1944, 10503360), (2016, 10128240), (2084, 9797760), (2160, 9453024), (2187, 9336320), (2240, 9115416), (2268, 9002880), (2304, 8862210), (2430, 8402688), (2520, 8102592), (2560, 7975989), (2592, 7877520), (2605, 7838208), (2688, 7596180), (2835, 7202304), (2880, 7089768), (2916, 7002240), (3024, 6752160), (3126, 6531840), (3240, 6302016), (3360, 6076944), (3402, 6001920), (3456, 5908140), (3584, 5697135), (3645, 5601792), (3647, 5598720), (3780, 5401728), (3840, 5317326), (3888, 5251680), (4032, 5064120), (4168, 4898880), (4320, 4726512), (4374, 4668160), (4480, 4557708), (4536, 4501440), (4608, 4431105), (4689, 4354560), (4860, 4201344), (5040, 4051296), (5103, 4001280), (5184, 3938760), (5210, 3919104), (5376, 3798090), (5670, 3601152), (5760, 3544884), (5832, 3501120), (6048, 3376080), (6252, 3265920), (6480, 3151008), (6720, 3038472), (6804, 3000960), (6912, 2954070), (7290, 2800896), (7294, 2799360), (7560, 2700864), (7680, 2658663), (7776, 2625840), (7815, 2612736), (8064, 2532060), (8336, 2449440), (8505, 2400768), (8640, 2363256), (8748, 2334080), (8960, 2278854), (9072, 2250720), (9378, 2177280), (9720, 2100672), (10080, 2025648), (10206, 2000640), (10368, 1969380), (10420, 1959552), (10752, 1899045), (10935, 1867264), (10941, 1866240), (11340, 1800576), (11520, 1772442), (11664, 1750560), (12096, 1688040), (12504, 1632960), (12960, 1575504), (13440, 1519236), (13608, 1500480), (13824, 1477035), (14067, 1451520), (14580, 1400448), (14588, 1399680), (15120, 1350432), (15309, 1333760), (15552, 1312920), (15630, 1306368), (16128, 1266030), (16672, 1224720), (17010, 1200384), (17280, 1181628), (17496, 1167040), (17920, 1139427), (18144, 1125360), (18235, 1119744), (18756, 1088640), (19440, 1050336), (20160, 1012824), (20412, 1000320), (20736, 984690), (20840, 979776), (21870, 933632), (21882, 933120), (22680, 900288), (23040, 886221), (23328, 875280), (23445, 870912), (24192, 844020), (25008, 816480), (25515, 800256), (25920, 787752), (26880, 759618), (27216, 750240), (28134, 725760), (29160, 700224), (29176, 699840), (30240, 675216), (30618, 666880), (31104, 656460), (31260, 653184), (32256, 633015), (32823, 622080), (33344, 612360), (34020, 600192), (34560, 590814), (34992, 583520), (36288, 562680), (36470, 559872), (37512, 544320), (38880, 525168), (40320, 506412), (40824, 500160), (41472, 492345), (41680, 489888), (42201, 483840), (43740, 466816), (43764, 466560), (45360, 450144), (46656, 437640), (46890, 435456), (48384, 422010), (50016, 408240), (51030, 400128), (51840, 393876), (53760, 379809), (54432, 375120), (54705, 373248), (56268, 362880), (58320, 350112), (58352, 349920), (60480, 337608), (61236, 333440), (62208, 328230), (62520, 326592), (65646, 311040), (66688, 306180), (68040, 300096), (69120, 295407), (69984, 291760), (70335, 290304), (72576, 281340), (72940, 279936), (75024, 272160), (76545, 266752), (77760, 262584), (80640, 253206), (81648, 250080), (83360, 244944), (84402, 241920), (87480, 233408), (87528, 233280), (90720, 225072), (93312, 218820), (93780, 217728), (96768, 211005), (98469, 207360), (100032, 204120), (102060, 200064), (103680, 196938), (108864, 187560), (109410, 186624), (112536, 181440), (116640, 175056), (116704, 174960), (120960, 168804), (122472, 166720), (124416, 164115), (125040, 163296), (126603, 161280), (131292, 155520), (133376, 153090), (136080, 150048), (139968, 145880), (140670, 145152)]