19997291520

素因数分解:

$2^{10}\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13999}}^1$

素因数の和:14061

約数の個数: 264

約数和(自身を含む): 71530368000

約数和(自身を除く): 51533076480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 240, 248, 256, 279, 288, 310, 320, 360, 372, 384, 465, 480, 496, 512, 558, 576, 620, 640, 720, 744, 768, 930, 960, 992, 1024, 1116, 1152, 1240, 1280, 1395, 1440, 1488, 1536, 1860, 1920, 1984, 2232, 2304, 2480, 2560, 2790, 2880, 2976, 3072, 3720, 3840, 3968, 4464, 4608, 4960, 5120, 5580, 5760, 5952, 7440, 7680, 7936, 8928, 9216, 9920, 11160, 11520, 11904, 13999, 14880, 15360, 15872, 17856, 19840, 22320, 23040, 23808, 27998, 29760, 31744, 35712, 39680, 41997, 44640, 46080, 47616, 55996, 59520, 69995, 71424, 79360, 83994, 89280, 95232, 111992, 119040, 125991, 139990, 142848, 158720, 167988, 178560, 209985, 223984, 238080, 251982, 279980, 285696, 335976, 357120, 419970, 433969, 447968, 476160, 503964, 559960, 629955, 671952, 714240, 839940, 867938, 895936, 1007928, 1119920, 1259910, 1301907, 1343904, 1428480, 1679880, 1735876, 1791872, 2015856, 2169845, 2239840, 2519820, 2603814, 2687808, 3359760, 3471752, 3583744, 3905721, 4031712, 4339690, 4479680, 5039640, 5207628, 5375616, 6509535, 6719520, 6943504, 7167488, 7811442, 8063424, 8679380, 8959360, 10079280, 10415256, 10751232, 13019070, 13439040, 13887008, 14334976, 15622884, 16126848, 17358760, 17918720, 19528605, 20158560, 20830512, 21502464, 26038140, 26878080, 27774016, 31245768, 32253696, 34717520, 35837440, 39057210, 40317120, 41661024, 43004928, 52076280, 53756160, 55548032, 62491536, 64507392, 69435040, 71674880, 78114420, 80634240, 83322048, 104152560, 107512320, 111096064, 124983072, 129014784, 138870080, 156228840, 161268480, 166644096, 208305120, 215024640, 222192128, 249966144, 277740160, 312457680, 322536960, 333288192, 416610240, 444384256, 499932288, 555480320, 624915360, 645073920, 666576384, 833220480, 999864576, 1110960640, 1249830720, 1333152768, 1666440960, 1999729152, 2221921280, 2499661440, 3332881920, 3999458304, 4999322880, 6665763840, 9998645760, 19997291520]

約数ペア:

[(1, 19997291520), (2, 9998645760), (3, 6665763840), (4, 4999322880), (5, 3999458304), (6, 3332881920), (8, 2499661440), (9, 2221921280), (10, 1999729152), (12, 1666440960), (15, 1333152768), (16, 1249830720), (18, 1110960640), (20, 999864576), (24, 833220480), (30, 666576384), (31, 645073920), (32, 624915360), (36, 555480320), (40, 499932288), (45, 444384256), (48, 416610240), (60, 333288192), (62, 322536960), (64, 312457680), (72, 277740160), (80, 249966144), (90, 222192128), (93, 215024640), (96, 208305120), (120, 166644096), (124, 161268480), (128, 156228840), (144, 138870080), (155, 129014784), (160, 124983072), (180, 111096064), (186, 107512320), (192, 104152560), (240, 83322048), (248, 80634240), (256, 78114420), (279, 71674880), (288, 69435040), (310, 64507392), (320, 62491536), (360, 55548032), (372, 53756160), (384, 52076280), (465, 43004928), (480, 41661024), (496, 40317120), (512, 39057210), (558, 35837440), (576, 34717520), (620, 32253696), (640, 31245768), (720, 27774016), (744, 26878080), (768, 26038140), (930, 21502464), (960, 20830512), (992, 20158560), (1024, 19528605), (1116, 17918720), (1152, 17358760), (1240, 16126848), (1280, 15622884), (1395, 14334976), (1440, 13887008), (1488, 13439040), (1536, 13019070), (1860, 10751232), (1920, 10415256), (1984, 10079280), (2232, 8959360), (2304, 8679380), (2480, 8063424), (2560, 7811442), (2790, 7167488), (2880, 6943504), (2976, 6719520), (3072, 6509535), (3720, 5375616), (3840, 5207628), (3968, 5039640), (4464, 4479680), (4608, 4339690), (4960, 4031712), (5120, 3905721), (5580, 3583744), (5760, 3471752), (5952, 3359760), (7440, 2687808), (7680, 2603814), (7936, 2519820), (8928, 2239840), (9216, 2169845), (9920, 2015856), (11160, 1791872), (11520, 1735876), (11904, 1679880), (13999, 1428480), (14880, 1343904), (15360, 1301907), (15872, 1259910), (17856, 1119920), (19840, 1007928), (22320, 895936), (23040, 867938), (23808, 839940), (27998, 714240), (29760, 671952), (31744, 629955), (35712, 559960), (39680, 503964), (41997, 476160), (44640, 447968), (46080, 433969), (47616, 419970), (55996, 357120), (59520, 335976), (69995, 285696), (71424, 279980), (79360, 251982), (83994, 238080), (89280, 223984), (95232, 209985), (111992, 178560), (119040, 167988), (125991, 158720), (139990, 142848)]