257143680

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:698

約数の個数: 256

約数和(自身を含む): 951782400

約数和(自身を除く): 694638720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 64, 69, 72, 80, 90, 92, 96, 108, 115, 120, 128, 135, 138, 144, 160, 180, 184, 192, 207, 216, 230, 240, 270, 276, 288, 320, 345, 360, 368, 384, 414, 432, 460, 480, 540, 552, 576, 621, 640, 647, 690, 720, 736, 828, 864, 920, 960, 1035, 1080, 1104, 1152, 1242, 1294, 1380, 1440, 1472, 1656, 1728, 1840, 1920, 1941, 2070, 2160, 2208, 2484, 2588, 2760, 2880, 2944, 3105, 3235, 3312, 3456, 3680, 3882, 4140, 4320, 4416, 4968, 5176, 5520, 5760, 5823, 6210, 6470, 6624, 7360, 7764, 8280, 8640, 8832, 9705, 9936, 10352, 11040, 11646, 12420, 12940, 13248, 14720, 14881, 15528, 16560, 17280, 17469, 19410, 19872, 20704, 22080, 23292, 24840, 25880, 26496, 29115, 29762, 31056, 33120, 34938, 38820, 39744, 41408, 44160, 44643, 46584, 49680, 51760, 58230, 59524, 62112, 66240, 69876, 74405, 77640, 79488, 82816, 87345, 89286, 93168, 99360, 103520, 116460, 119048, 124224, 132480, 133929, 139752, 148810, 155280, 174690, 178572, 186336, 198720, 207040, 223215, 232920, 238096, 248448, 267858, 279504, 297620, 310560, 349380, 357144, 372672, 397440, 401787, 414080, 446430, 465840, 476192, 535716, 559008, 595240, 621120, 669645, 698760, 714288, 745344, 803574, 892860, 931680, 952384, 1071432, 1118016, 1190480, 1242240, 1339290, 1397520, 1428576, 1607148, 1785720, 1863360, 1904768, 2008935, 2142864, 2236032, 2380960, 2678580, 2795040, 2857152, 3214296, 3571440, 3726720, 4017870, 4285728, 4761920, 5357160, 5590080, 5714304, 6428592, 7142880, 8035740, 8571456, 9523840, 10714320, 11180160, 12857184, 14285760, 16071480, 17142912, 21428640, 25714368, 28571520, 32142960, 42857280, 51428736, 64285920, 85714560, 128571840, 257143680]

約数ペア:

[(1, 257143680), (2, 128571840), (3, 85714560), (4, 64285920), (5, 51428736), (6, 42857280), (8, 32142960), (9, 28571520), (10, 25714368), (12, 21428640), (15, 17142912), (16, 16071480), (18, 14285760), (20, 12857184), (23, 11180160), (24, 10714320), (27, 9523840), (30, 8571456), (32, 8035740), (36, 7142880), (40, 6428592), (45, 5714304), (46, 5590080), (48, 5357160), (54, 4761920), (60, 4285728), (64, 4017870), (69, 3726720), (72, 3571440), (80, 3214296), (90, 2857152), (92, 2795040), (96, 2678580), (108, 2380960), (115, 2236032), (120, 2142864), (128, 2008935), (135, 1904768), (138, 1863360), (144, 1785720), (160, 1607148), (180, 1428576), (184, 1397520), (192, 1339290), (207, 1242240), (216, 1190480), (230, 1118016), (240, 1071432), (270, 952384), (276, 931680), (288, 892860), (320, 803574), (345, 745344), (360, 714288), (368, 698760), (384, 669645), (414, 621120), (432, 595240), (460, 559008), (480, 535716), (540, 476192), (552, 465840), (576, 446430), (621, 414080), (640, 401787), (647, 397440), (690, 372672), (720, 357144), (736, 349380), (828, 310560), (864, 297620), (920, 279504), (960, 267858), (1035, 248448), (1080, 238096), (1104, 232920), (1152, 223215), (1242, 207040), (1294, 198720), (1380, 186336), (1440, 178572), (1472, 174690), (1656, 155280), (1728, 148810), (1840, 139752), (1920, 133929), (1941, 132480), (2070, 124224), (2160, 119048), (2208, 116460), (2484, 103520), (2588, 99360), (2760, 93168), (2880, 89286), (2944, 87345), (3105, 82816), (3235, 79488), (3312, 77640), (3456, 74405), (3680, 69876), (3882, 66240), (4140, 62112), (4320, 59524), (4416, 58230), (4968, 51760), (5176, 49680), (5520, 46584), (5760, 44643), (5823, 44160), (6210, 41408), (6470, 39744), (6624, 38820), (7360, 34938), (7764, 33120), (8280, 31056), (8640, 29762), (8832, 29115), (9705, 26496), (9936, 25880), (10352, 24840), (11040, 23292), (11646, 22080), (12420, 20704), (12940, 19872), (13248, 19410), (14720, 17469), (14881, 17280), (15528, 16560)]