640120320

素因数分解:

$2^9\times 3^6\times 5^1\times 7^3$

素因数の和:62

約数の個数: 560

約数和(自身を含む): 2683533600

約数和(自身を除く): 2043413280

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, 49, 54, 56, 60, 63, 64, 70, 72, 80, 81, 84, 90, 96, 98, 105, 108, 112, 120, 126, 128, 135, 140, 144, 147, 160, 162, 168, 180, 189, 192, 196, 210, 216, 224, 240, 243, 245, 252, 256, 270, 280, 288, 294, 315, 320, 324, 336, 343, 360, 378, 384, 392, 405, 420, 432, 441, 448, 480, 486, 490, 504, 512, 540, 560, 567, 576, 588, 630, 640, 648, 672, 686, 720, 729, 735, 756, 768, 784, 810, 840, 864, 882, 896, 945, 960, 972, 980, 1008, 1029, 1080, 1120, 1134, 1152, 1176, 1215, 1260, 1280, 1296, 1323, 1344, 1372, 1440, 1458, 1470, 1512, 1536, 1568, 1620, 1680, 1701, 1715, 1728, 1764, 1792, 1890, 1920, 1944, 1960, 2016, 2058, 2160, 2205, 2240, 2268, 2304, 2352, 2430, 2520, 2560, 2592, 2646, 2688, 2744, 2835, 2880, 2916, 2940, 3024, 3087, 3136, 3240, 3360, 3402, 3430, 3456, 3528, 3584, 3645, 3780, 3840, 3888, 3920, 3969, 4032, 4116, 4320, 4410, 4480, 4536, 4608, 4704, 4860, 5040, 5103, 5145, 5184, 5292, 5376, 5488, 5670, 5760, 5832, 5880, 6048, 6174, 6272, 6480, 6615, 6720, 6804, 6860, 6912, 7056, 7290, 7560, 7680, 7776, 7840, 7938, 8064, 8232, 8505, 8640, 8820, 8960, 9072, 9261, 9408, 9720, 10080, 10206, 10290, 10368, 10584, 10752, 10976, 11340, 11520, 11664, 11760, 11907, 12096, 12348, 12544, 12960, 13230, 13440, 13608, 13720, 13824, 14112, 14580, 15120, 15435, 15552, 15680, 15876, 16128, 16464, 17010, 17280, 17640, 17920, 18144, 18522, 18816, 19440, 19845, 20160, 20412, 20580, 20736, 21168, 21952, 22680, 23040, 23328, 23520, 23814, 24192, 24696, 25088, 25515, 25920, 26460, 26880, 27216, 27440, 27783, 28224, 29160, 30240, 30870, 31104, 31360, 31752, 32256, 32928, 34020, 34560, 35280, 35721, 36288, 37044, 37632, 38880, 39690, 40320, 40824, 41160, 41472, 42336, 43904, 45360, 46305, 46656, 47040, 47628, 48384, 49392, 51030, 51840, 52920, 53760, 54432, 54880, 55566, 56448, 58320, 59535, 60480, 61740, 62208, 62720, 63504, 65856, 68040, 69120, 70560, 71442, 72576, 74088, 75264, 77760, 79380, 80640, 81648, 82320, 83349, 84672, 87808, 90720, 92610, 93312, 94080, 95256, 96768, 98784, 102060, 103680, 105840, 108864, 109760, 111132, 112896, 116640, 119070, 120960, 123480, 124416, 125440, 127008, 131712, 136080, 138915, 141120, 142884, 145152, 148176, 155520, 158760, 161280, 163296, 164640, 166698, 169344, 175616, 178605, 181440, 185220, 186624, 188160, 190512, 197568, 204120, 207360, 211680, 217728, 219520, 222264, 225792, 233280, 238140, 241920, 246960, 250047, 254016, 263424, 272160, 277830, 282240, 285768, 290304, 296352, 311040, 317520, 326592, 329280, 333396, 338688, 357210, 362880, 370440, 373248, 376320, 381024, 395136, 408240, 416745, 423360, 435456, 439040, 444528, 466560, 476280, 483840, 493920, 500094, 508032, 526848, 544320, 555660, 564480, 571536, 592704, 622080, 635040, 653184, 658560, 666792, 677376, 714420, 725760, 740880, 762048, 790272, 816480, 833490, 846720, 870912, 878080, 889056, 933120, 952560, 987840, 1000188, 1016064, 1088640, 1111320, 1128960, 1143072, 1185408, 1250235, 1270080, 1306368, 1317120, 1333584, 1428840, 1451520, 1481760, 1524096, 1580544, 1632960, 1666980, 1693440, 1778112, 1866240, 1905120, 1975680, 2000376, 2032128, 2177280, 2222640, 2286144, 2370816, 2500470, 2540160, 2612736, 2634240, 2667168, 2857680, 2963520, 3048192, 3265920, 3333960, 3386880, 3556224, 3810240, 3951360, 4000752, 4354560, 4445280, 4572288, 4741632, 5000940, 5080320, 5334336, 5715360, 5927040, 6096384, 6531840, 6667920, 7112448, 7620480, 7902720, 8001504, 8890560, 9144576, 10001880, 10160640, 10668672, 11430720, 11854080, 13063680, 13335840, 14224896, 15240960, 16003008, 17781120, 18289152, 20003760, 21337344, 22861440, 23708160, 26671680, 30481920, 32006016, 35562240, 40007520, 42674688, 45722880, 53343360, 64012032, 71124480, 80015040, 91445760, 106686720, 128024064, 160030080, 213373440, 320060160, 640120320]

約数ペア:

[(1, 640120320), (2, 320060160), (3, 213373440), (4, 160030080), (5, 128024064), (6, 106686720), (7, 91445760), (8, 80015040), (9, 71124480), (10, 64012032), (12, 53343360), (14, 45722880), (15, 42674688), (16, 40007520), (18, 35562240), (20, 32006016), (21, 30481920), (24, 26671680), (27, 23708160), (28, 22861440), (30, 21337344), (32, 20003760), (35, 18289152), (36, 17781120), (40, 16003008), (42, 15240960), (45, 14224896), (48, 13335840), (49, 13063680), (54, 11854080), (56, 11430720), (60, 10668672), (63, 10160640), (64, 10001880), (70, 9144576), (72, 8890560), (80, 8001504), (81, 7902720), (84, 7620480), (90, 7112448), (96, 6667920), (98, 6531840), (105, 6096384), (108, 5927040), (112, 5715360), (120, 5334336), (126, 5080320), (128, 5000940), (135, 4741632), (140, 4572288), (144, 4445280), (147, 4354560), (160, 4000752), (162, 3951360), (168, 3810240), (180, 3556224), (189, 3386880), (192, 3333960), (196, 3265920), (210, 3048192), (216, 2963520), (224, 2857680), (240, 2667168), (243, 2634240), (245, 2612736), (252, 2540160), (256, 2500470), (270, 2370816), (280, 2286144), (288, 2222640), (294, 2177280), (315, 2032128), (320, 2000376), (324, 1975680), (336, 1905120), (343, 1866240), (360, 1778112), (378, 1693440), (384, 1666980), (392, 1632960), (405, 1580544), (420, 1524096), (432, 1481760), (441, 1451520), (448, 1428840), (480, 1333584), (486, 1317120), (490, 1306368), (504, 1270080), (512, 1250235), (540, 1185408), (560, 1143072), (567, 1128960), (576, 1111320), (588, 1088640), (630, 1016064), (640, 1000188), (648, 987840), (672, 952560), (686, 933120), (720, 889056), (729, 878080), (735, 870912), (756, 846720), (768, 833490), (784, 816480), (810, 790272), (840, 762048), (864, 740880), (882, 725760), (896, 714420), (945, 677376), (960, 666792), (972, 658560), (980, 653184), (1008, 635040), (1029, 622080), (1080, 592704), (1120, 571536), (1134, 564480), (1152, 555660), (1176, 544320), (1215, 526848), (1260, 508032), (1280, 500094), (1296, 493920), (1323, 483840), (1344, 476280), (1372, 466560), (1440, 444528), (1458, 439040), (1470, 435456), (1512, 423360), (1536, 416745), (1568, 408240), (1620, 395136), (1680, 381024), (1701, 376320), (1715, 373248), (1728, 370440), (1764, 362880), (1792, 357210), (1890, 338688), (1920, 333396), (1944, 329280), (1960, 326592), (2016, 317520), (2058, 311040), (2160, 296352), (2205, 290304), (2240, 285768), (2268, 282240), (2304, 277830), (2352, 272160), (2430, 263424), (2520, 254016), (2560, 250047), (2592, 246960), (2646, 241920), (2688, 238140), (2744, 233280), (2835, 225792), (2880, 222264), (2916, 219520), (2940, 217728), (3024, 211680), (3087, 207360), (3136, 204120), (3240, 197568), (3360, 190512), (3402, 188160), (3430, 186624), (3456, 185220), (3528, 181440), (3584, 178605), (3645, 175616), (3780, 169344), (3840, 166698), (3888, 164640), (3920, 163296), (3969, 161280), (4032, 158760), (4116, 155520), (4320, 148176), (4410, 145152), (4480, 142884), (4536, 141120), (4608, 138915), (4704, 136080), (4860, 131712), (5040, 127008), (5103, 125440), (5145, 124416), (5184, 123480), (5292, 120960), (5376, 119070), (5488, 116640), (5670, 112896), (5760, 111132), (5832, 109760), (5880, 108864), (6048, 105840), (6174, 103680), (6272, 102060), (6480, 98784), (6615, 96768), (6720, 95256), (6804, 94080), (6860, 93312), (6912, 92610), (7056, 90720), (7290, 87808), (7560, 84672), (7680, 83349), (7776, 82320), (7840, 81648), (7938, 80640), (8064, 79380), (8232, 77760), (8505, 75264), (8640, 74088), (8820, 72576), (8960, 71442), (9072, 70560), (9261, 69120), (9408, 68040), (9720, 65856), (10080, 63504), (10206, 62720), (10290, 62208), (10368, 61740), (10584, 60480), (10752, 59535), (10976, 58320), (11340, 56448), (11520, 55566), (11664, 54880), (11760, 54432), (11907, 53760), (12096, 52920), (12348, 51840), (12544, 51030), (12960, 49392), (13230, 48384), (13440, 47628), (13608, 47040), (13720, 46656), (13824, 46305), (14112, 45360), (14580, 43904), (15120, 42336), (15435, 41472), (15552, 41160), (15680, 40824), (15876, 40320), (16128, 39690), (16464, 38880), (17010, 37632), (17280, 37044), (17640, 36288), (17920, 35721), (18144, 35280), (18522, 34560), (18816, 34020), (19440, 32928), (19845, 32256), (20160, 31752), (20412, 31360), (20580, 31104), (20736, 30870), (21168, 30240), (21952, 29160), (22680, 28224), (23040, 27783), (23328, 27440), (23520, 27216), (23814, 26880), (24192, 26460), (24696, 25920), (25088, 25515)]