20519948160

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2333}}^1$

素因数の和:2870

約数の個数: 256

約数和(自身を含む): 72848808000

約数和(自身を除く): 52328859840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 509, 540, 576, 640, 720, 864, 960, 1018, 1080, 1152, 1440, 1527, 1728, 1920, 2036, 2160, 2333, 2545, 2880, 3054, 3456, 4072, 4320, 4581, 4666, 5090, 5760, 6108, 6999, 7635, 8144, 8640, 9162, 9332, 10180, 11665, 12216, 13743, 13998, 15270, 16288, 17280, 18324, 18664, 20360, 20997, 22905, 23330, 24432, 27486, 27996, 30540, 32576, 34995, 36648, 37328, 40720, 41994, 45810, 46660, 48864, 54972, 55992, 61080, 62991, 65152, 68715, 69990, 73296, 74656, 81440, 83988, 91620, 93320, 97728, 104985, 109944, 111984, 122160, 125982, 137430, 139980, 146592, 149312, 162880, 167976, 183240, 186640, 195456, 209970, 219888, 223968, 244320, 251964, 274860, 279960, 293184, 298624, 314955, 325760, 335952, 366480, 373280, 419940, 439776, 447936, 488640, 503928, 549720, 559920, 586368, 629910, 671904, 732960, 746560, 839880, 879552, 895872, 977280, 1007856, 1099440, 1119840, 1187497, 1259820, 1343808, 1465920, 1493120, 1679760, 1759104, 2015712, 2198880, 2239680, 2374994, 2519640, 2687616, 2931840, 3359520, 3562491, 4031424, 4397760, 4479360, 4749988, 5039280, 5937485, 6719040, 7124982, 8062848, 8795520, 9499976, 10078560, 10687473, 11874970, 13438080, 14249964, 17812455, 18999952, 20157120, 21374946, 23749940, 28499928, 32062419, 35624910, 37999904, 40314240, 42749892, 47499880, 53437365, 56999856, 64124838, 71249820, 75999808, 85499784, 94999760, 106874730, 113999712, 128249676, 142499640, 151999616, 160312095, 170999568, 189999520, 213749460, 227999424, 256499352, 284999280, 320624190, 341999136, 379999040, 427498920, 455998848, 512998704, 569998560, 641248380, 683998272, 759998080, 854997840, 1025997408, 1139997120, 1282496760, 1367996544, 1709995680, 2051994816, 2279994240, 2564993520, 3419991360, 4103989632, 5129987040, 6839982720, 10259974080, 20519948160]

約数ペア:

[(1, 20519948160), (2, 10259974080), (3, 6839982720), (4, 5129987040), (5, 4103989632), (6, 3419991360), (8, 2564993520), (9, 2279994240), (10, 2051994816), (12, 1709995680), (15, 1367996544), (16, 1282496760), (18, 1139997120), (20, 1025997408), (24, 854997840), (27, 759998080), (30, 683998272), (32, 641248380), (36, 569998560), (40, 512998704), (45, 455998848), (48, 427498920), (54, 379999040), (60, 341999136), (64, 320624190), (72, 284999280), (80, 256499352), (90, 227999424), (96, 213749460), (108, 189999520), (120, 170999568), (128, 160312095), (135, 151999616), (144, 142499640), (160, 128249676), (180, 113999712), (192, 106874730), (216, 94999760), (240, 85499784), (270, 75999808), (288, 71249820), (320, 64124838), (360, 56999856), (384, 53437365), (432, 47499880), (480, 42749892), (509, 40314240), (540, 37999904), (576, 35624910), (640, 32062419), (720, 28499928), (864, 23749940), (960, 21374946), (1018, 20157120), (1080, 18999952), (1152, 17812455), (1440, 14249964), (1527, 13438080), (1728, 11874970), (1920, 10687473), (2036, 10078560), (2160, 9499976), (2333, 8795520), (2545, 8062848), (2880, 7124982), (3054, 6719040), (3456, 5937485), (4072, 5039280), (4320, 4749988), (4581, 4479360), (4666, 4397760), (5090, 4031424), (5760, 3562491), (6108, 3359520), (6999, 2931840), (7635, 2687616), (8144, 2519640), (8640, 2374994), (9162, 2239680), (9332, 2198880), (10180, 2015712), (11665, 1759104), (12216, 1679760), (13743, 1493120), (13998, 1465920), (15270, 1343808), (16288, 1259820), (17280, 1187497), (18324, 1119840), (18664, 1099440), (20360, 1007856), (20997, 977280), (22905, 895872), (23330, 879552), (24432, 839880), (27486, 746560), (27996, 732960), (30540, 671904), (32576, 629910), (34995, 586368), (36648, 559920), (37328, 549720), (40720, 503928), (41994, 488640), (45810, 447936), (46660, 439776), (48864, 419940), (54972, 373280), (55992, 366480), (61080, 335952), (62991, 325760), (65152, 314955), (68715, 298624), (69990, 293184), (73296, 279960), (74656, 274860), (81440, 251964), (83988, 244320), (91620, 223968), (93320, 219888), (97728, 209970), (104985, 195456), (109944, 186640), (111984, 183240), (122160, 167976), (125982, 162880), (137430, 149312), (139980, 146592)]