28529280

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1$

素因数の和:168

約数の個数: 256

約数和(自身を含む): 109670400

約数和(自身を除く): 81141120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 127, 128, 130, 135, 144, 156, 160, 180, 192, 195, 208, 216, 234, 240, 254, 260, 270, 288, 312, 320, 351, 360, 381, 384, 390, 416, 432, 468, 480, 508, 520, 540, 576, 585, 624, 635, 640, 702, 720, 762, 780, 832, 864, 936, 960, 1016, 1040, 1080, 1143, 1152, 1170, 1248, 1270, 1404, 1440, 1524, 1560, 1651, 1664, 1728, 1755, 1872, 1905, 1920, 2032, 2080, 2160, 2286, 2340, 2496, 2540, 2808, 2880, 3048, 3120, 3302, 3429, 3456, 3510, 3744, 3810, 4064, 4160, 4320, 4572, 4680, 4953, 4992, 5080, 5616, 5715, 5760, 6096, 6240, 6604, 6858, 7020, 7488, 7620, 8128, 8255, 8320, 8640, 9144, 9360, 9906, 10160, 11232, 11430, 12192, 12480, 13208, 13716, 14040, 14859, 14976, 15240, 16256, 16510, 17145, 17280, 18288, 18720, 19812, 20320, 22464, 22860, 24384, 24765, 24960, 26416, 27432, 28080, 29718, 30480, 33020, 34290, 36576, 37440, 39624, 40640, 44577, 44928, 45720, 48768, 49530, 52832, 54864, 56160, 59436, 60960, 66040, 68580, 73152, 74295, 74880, 79248, 81280, 89154, 91440, 99060, 105664, 109728, 112320, 118872, 121920, 132080, 137160, 146304, 148590, 158496, 178308, 182880, 198120, 211328, 219456, 222885, 224640, 237744, 243840, 264160, 274320, 297180, 316992, 356616, 365760, 396240, 438912, 445770, 475488, 528320, 548640, 594360, 633984, 713232, 731520, 792480, 891540, 950976, 1056640, 1097280, 1188720, 1426464, 1584960, 1783080, 1901952, 2194560, 2377440, 2852928, 3169920, 3566160, 4754880, 5705856, 7132320, 9509760, 14264640, 28529280]

約数ペア:

[(1, 28529280), (2, 14264640), (3, 9509760), (4, 7132320), (5, 5705856), (6, 4754880), (8, 3566160), (9, 3169920), (10, 2852928), (12, 2377440), (13, 2194560), (15, 1901952), (16, 1783080), (18, 1584960), (20, 1426464), (24, 1188720), (26, 1097280), (27, 1056640), (30, 950976), (32, 891540), (36, 792480), (39, 731520), (40, 713232), (45, 633984), (48, 594360), (52, 548640), (54, 528320), (60, 475488), (64, 445770), (65, 438912), (72, 396240), (78, 365760), (80, 356616), (90, 316992), (96, 297180), (104, 274320), (108, 264160), (117, 243840), (120, 237744), (127, 224640), (128, 222885), (130, 219456), (135, 211328), (144, 198120), (156, 182880), (160, 178308), (180, 158496), (192, 148590), (195, 146304), (208, 137160), (216, 132080), (234, 121920), (240, 118872), (254, 112320), (260, 109728), (270, 105664), (288, 99060), (312, 91440), (320, 89154), (351, 81280), (360, 79248), (381, 74880), (384, 74295), (390, 73152), (416, 68580), (432, 66040), (468, 60960), (480, 59436), (508, 56160), (520, 54864), (540, 52832), (576, 49530), (585, 48768), (624, 45720), (635, 44928), (640, 44577), (702, 40640), (720, 39624), (762, 37440), (780, 36576), (832, 34290), (864, 33020), (936, 30480), (960, 29718), (1016, 28080), (1040, 27432), (1080, 26416), (1143, 24960), (1152, 24765), (1170, 24384), (1248, 22860), (1270, 22464), (1404, 20320), (1440, 19812), (1524, 18720), (1560, 18288), (1651, 17280), (1664, 17145), (1728, 16510), (1755, 16256), (1872, 15240), (1905, 14976), (1920, 14859), (2032, 14040), (2080, 13716), (2160, 13208), (2286, 12480), (2340, 12192), (2496, 11430), (2540, 11232), (2808, 10160), (2880, 9906), (3048, 9360), (3120, 9144), (3302, 8640), (3429, 8320), (3456, 8255), (3510, 8128), (3744, 7620), (3810, 7488), (4064, 7020), (4160, 6858), (4320, 6604), (4572, 6240), (4680, 6096), (4953, 5760), (4992, 5715), (5080, 5616)]