81285120

素因数分解:

$2^{12}\times 3^4\times 5^1\times 7^2$

素因数の和:55

約数の個数: 390

約数和(自身を含む): 338959962

約数和(自身を除く): 257674842

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, 245, 252, 256, 270, 280, 288, 294, 315, 320, 324, 336, 360, 378, 384, 392, 405, 420, 432, 441, 448, 480, 490, 504, 512, 540, 560, 567, 576, 588, 630, 640, 648, 672, 720, 735, 756, 768, 784, 810, 840, 864, 882, 896, 945, 960, 980, 1008, 1024, 1080, 1120, 1134, 1152, 1176, 1260, 1280, 1296, 1323, 1344, 1440, 1470, 1512, 1536, 1568, 1620, 1680, 1728, 1764, 1792, 1890, 1920, 1960, 2016, 2048, 2160, 2205, 2240, 2268, 2304, 2352, 2520, 2560, 2592, 2646, 2688, 2835, 2880, 2940, 3024, 3072, 3136, 3240, 3360, 3456, 3528, 3584, 3780, 3840, 3920, 3969, 4032, 4096, 4320, 4410, 4480, 4536, 4608, 4704, 5040, 5120, 5184, 5292, 5376, 5670, 5760, 5880, 6048, 6144, 6272, 6480, 6615, 6720, 6912, 7056, 7168, 7560, 7680, 7840, 7938, 8064, 8640, 8820, 8960, 9072, 9216, 9408, 10080, 10240, 10368, 10584, 10752, 11340, 11520, 11760, 12096, 12288, 12544, 12960, 13230, 13440, 13824, 14112, 14336, 15120, 15360, 15680, 15876, 16128, 17280, 17640, 17920, 18144, 18432, 18816, 19845, 20160, 20480, 20736, 21168, 21504, 22680, 23040, 23520, 24192, 25088, 25920, 26460, 26880, 27648, 28224, 28672, 30240, 30720, 31360, 31752, 32256, 34560, 35280, 35840, 36288, 36864, 37632, 39690, 40320, 41472, 42336, 43008, 45360, 46080, 47040, 48384, 50176, 51840, 52920, 53760, 55296, 56448, 60480, 61440, 62720, 63504, 64512, 69120, 70560, 71680, 72576, 75264, 79380, 80640, 82944, 84672, 86016, 90720, 92160, 94080, 96768, 100352, 103680, 105840, 107520, 110592, 112896, 120960, 125440, 127008, 129024, 138240, 141120, 143360, 145152, 150528, 158760, 161280, 165888, 169344, 181440, 184320, 188160, 193536, 200704, 207360, 211680, 215040, 225792, 241920, 250880, 254016, 258048, 276480, 282240, 290304, 301056, 317520, 322560, 331776, 338688, 362880, 376320, 387072, 414720, 423360, 430080, 451584, 483840, 501760, 508032, 552960, 564480, 580608, 602112, 635040, 645120, 677376, 725760, 752640, 774144, 829440, 846720, 903168, 967680, 1003520, 1016064, 1128960, 1161216, 1270080, 1290240, 1354752, 1451520, 1505280, 1658880, 1693440, 1806336, 1935360, 2032128, 2257920, 2322432, 2540160, 2709504, 2903040, 3010560, 3386880, 3870720, 4064256, 4515840, 5080320, 5419008, 5806080, 6773760, 8128512, 9031680, 10160640, 11612160, 13547520, 16257024, 20321280, 27095040, 40642560, 81285120]

約数ペア:

[(1, 81285120), (2, 40642560), (3, 27095040), (4, 20321280), (5, 16257024), (6, 13547520), (7, 11612160), (8, 10160640), (9, 9031680), (10, 8128512), (12, 6773760), (14, 5806080), (15, 5419008), (16, 5080320), (18, 4515840), (20, 4064256), (21, 3870720), (24, 3386880), (27, 3010560), (28, 2903040), (30, 2709504), (32, 2540160), (35, 2322432), (36, 2257920), (40, 2032128), (42, 1935360), (45, 1806336), (48, 1693440), (49, 1658880), (54, 1505280), (56, 1451520), (60, 1354752), (63, 1290240), (64, 1270080), (70, 1161216), (72, 1128960), (80, 1016064), (81, 1003520), (84, 967680), (90, 903168), (96, 846720), (98, 829440), (105, 774144), (108, 752640), (112, 725760), (120, 677376), (126, 645120), (128, 635040), (135, 602112), (140, 580608), (144, 564480), (147, 552960), (160, 508032), (162, 501760), (168, 483840), (180, 451584), (189, 430080), (192, 423360), (196, 414720), (210, 387072), (216, 376320), (224, 362880), (240, 338688), (245, 331776), (252, 322560), (256, 317520), (270, 301056), (280, 290304), (288, 282240), (294, 276480), (315, 258048), (320, 254016), (324, 250880), (336, 241920), (360, 225792), (378, 215040), (384, 211680), (392, 207360), (405, 200704), (420, 193536), (432, 188160), (441, 184320), (448, 181440), (480, 169344), (490, 165888), (504, 161280), (512, 158760), (540, 150528), (560, 145152), (567, 143360), (576, 141120), (588, 138240), (630, 129024), (640, 127008), (648, 125440), (672, 120960), (720, 112896), (735, 110592), (756, 107520), (768, 105840), (784, 103680), (810, 100352), (840, 96768), (864, 94080), (882, 92160), (896, 90720), (945, 86016), (960, 84672), (980, 82944), (1008, 80640), (1024, 79380), (1080, 75264), (1120, 72576), (1134, 71680), (1152, 70560), (1176, 69120), (1260, 64512), (1280, 63504), (1296, 62720), (1323, 61440), (1344, 60480), (1440, 56448), (1470, 55296), (1512, 53760), (1536, 52920), (1568, 51840), (1620, 50176), (1680, 48384), (1728, 47040), (1764, 46080), (1792, 45360), (1890, 43008), (1920, 42336), (1960, 41472), (2016, 40320), (2048, 39690), (2160, 37632), (2205, 36864), (2240, 36288), (2268, 35840), (2304, 35280), (2352, 34560), (2520, 32256), (2560, 31752), (2592, 31360), (2646, 30720), (2688, 30240), (2835, 28672), (2880, 28224), (2940, 27648), (3024, 26880), (3072, 26460), (3136, 25920), (3240, 25088), (3360, 24192), (3456, 23520), (3528, 23040), (3584, 22680), (3780, 21504), (3840, 21168), (3920, 20736), (3969, 20480), (4032, 20160), (4096, 19845), (4320, 18816), (4410, 18432), (4480, 18144), (4536, 17920), (4608, 17640), (4704, 17280), (5040, 16128), (5120, 15876), (5184, 15680), (5292, 15360), (5376, 15120), (5670, 14336), (5760, 14112), (5880, 13824), (6048, 13440), (6144, 13230), (6272, 12960), (6480, 12544), (6615, 12288), (6720, 12096), (6912, 11760), (7056, 11520), (7168, 11340), (7560, 10752), (7680, 10584), (7840, 10368), (7938, 10240), (8064, 10080), (8640, 9408), (8820, 9216), (8960, 9072)]