128571840

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:696

約数の個数: 224

約数和(自身を含む): 474024960

約数和(自身を除く): 345453120

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, 135, 138, 144, 160, 180, 184, 192, 207, 216, 230, 240, 270, 276, 288, 320, 345, 360, 368, 414, 432, 460, 480, 540, 552, 576, 621, 647, 690, 720, 736, 828, 864, 920, 960, 1035, 1080, 1104, 1242, 1294, 1380, 1440, 1472, 1656, 1728, 1840, 1941, 2070, 2160, 2208, 2484, 2588, 2760, 2880, 3105, 3235, 3312, 3680, 3882, 4140, 4320, 4416, 4968, 5176, 5520, 5823, 6210, 6470, 6624, 7360, 7764, 8280, 8640, 9705, 9936, 10352, 11040, 11646, 12420, 12940, 13248, 14881, 15528, 16560, 17469, 19410, 19872, 20704, 22080, 23292, 24840, 25880, 29115, 29762, 31056, 33120, 34938, 38820, 39744, 41408, 44643, 46584, 49680, 51760, 58230, 59524, 62112, 66240, 69876, 74405, 77640, 87345, 89286, 93168, 99360, 103520, 116460, 119048, 124224, 133929, 139752, 148810, 155280, 174690, 178572, 186336, 198720, 207040, 223215, 232920, 238096, 267858, 279504, 297620, 310560, 349380, 357144, 372672, 401787, 446430, 465840, 476192, 535716, 559008, 595240, 621120, 669645, 698760, 714288, 803574, 892860, 931680, 952384, 1071432, 1118016, 1190480, 1339290, 1397520, 1428576, 1607148, 1785720, 1863360, 2008935, 2142864, 2380960, 2678580, 2795040, 2857152, 3214296, 3571440, 4017870, 4285728, 4761920, 5357160, 5590080, 6428592, 7142880, 8035740, 8571456, 10714320, 12857184, 14285760, 16071480, 21428640, 25714368, 32142960, 42857280, 64285920, 128571840]

約数ペア:

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