80991360

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:180

約数の個数: 256

約数和(自身を含む): 296208000

約数和(自身を除く): 215216640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 43, 45, 48, 54, 60, 64, 72, 80, 86, 90, 96, 108, 109, 120, 128, 129, 135, 144, 160, 172, 180, 192, 215, 216, 218, 240, 258, 270, 288, 320, 327, 344, 360, 384, 387, 430, 432, 436, 480, 516, 540, 545, 576, 640, 645, 654, 688, 720, 774, 860, 864, 872, 960, 981, 1032, 1080, 1090, 1152, 1161, 1290, 1308, 1376, 1440, 1548, 1635, 1720, 1728, 1744, 1920, 1935, 1962, 2064, 2160, 2180, 2322, 2580, 2616, 2752, 2880, 2943, 3096, 3270, 3440, 3456, 3488, 3870, 3924, 4128, 4320, 4360, 4644, 4687, 4905, 5160, 5232, 5504, 5760, 5805, 5886, 6192, 6540, 6880, 6976, 7740, 7848, 8256, 8640, 8720, 9288, 9374, 9810, 10320, 10464, 11610, 11772, 12384, 13080, 13760, 13952, 14061, 14715, 15480, 15696, 16512, 17280, 17440, 18576, 18748, 19620, 20640, 20928, 23220, 23435, 23544, 24768, 26160, 27520, 28122, 29430, 30960, 31392, 34880, 37152, 37496, 39240, 41280, 41856, 42183, 46440, 46870, 47088, 49536, 52320, 56244, 58860, 61920, 62784, 69760, 70305, 74304, 74992, 78480, 82560, 84366, 92880, 93740, 94176, 104640, 112488, 117720, 123840, 125568, 126549, 140610, 148608, 149984, 156960, 168732, 185760, 187480, 188352, 209280, 210915, 224976, 235440, 247680, 253098, 281220, 299968, 313920, 337464, 371520, 374960, 376704, 421830, 449952, 470880, 506196, 562440, 599936, 627840, 632745, 674928, 743040, 749920, 843660, 899904, 941760, 1012392, 1124880, 1265490, 1349856, 1499840, 1687320, 1799808, 1883520, 2024784, 2249760, 2530980, 2699712, 2999680, 3374640, 4049568, 4499520, 5061960, 5399424, 6749280, 8099136, 8999040, 10123920, 13498560, 16198272, 20247840, 26997120, 40495680, 80991360]

約数ペア:

[(1, 80991360), (2, 40495680), (3, 26997120), (4, 20247840), (5, 16198272), (6, 13498560), (8, 10123920), (9, 8999040), (10, 8099136), (12, 6749280), (15, 5399424), (16, 5061960), (18, 4499520), (20, 4049568), (24, 3374640), (27, 2999680), (30, 2699712), (32, 2530980), (36, 2249760), (40, 2024784), (43, 1883520), (45, 1799808), (48, 1687320), (54, 1499840), (60, 1349856), (64, 1265490), (72, 1124880), (80, 1012392), (86, 941760), (90, 899904), (96, 843660), (108, 749920), (109, 743040), (120, 674928), (128, 632745), (129, 627840), (135, 599936), (144, 562440), (160, 506196), (172, 470880), (180, 449952), (192, 421830), (215, 376704), (216, 374960), (218, 371520), (240, 337464), (258, 313920), (270, 299968), (288, 281220), (320, 253098), (327, 247680), (344, 235440), (360, 224976), (384, 210915), (387, 209280), (430, 188352), (432, 187480), (436, 185760), (480, 168732), (516, 156960), (540, 149984), (545, 148608), (576, 140610), (640, 126549), (645, 125568), (654, 123840), (688, 117720), (720, 112488), (774, 104640), (860, 94176), (864, 93740), (872, 92880), (960, 84366), (981, 82560), (1032, 78480), (1080, 74992), (1090, 74304), (1152, 70305), (1161, 69760), (1290, 62784), (1308, 61920), (1376, 58860), (1440, 56244), (1548, 52320), (1635, 49536), (1720, 47088), (1728, 46870), (1744, 46440), (1920, 42183), (1935, 41856), (1962, 41280), (2064, 39240), (2160, 37496), (2180, 37152), (2322, 34880), (2580, 31392), (2616, 30960), (2752, 29430), (2880, 28122), (2943, 27520), (3096, 26160), (3270, 24768), (3440, 23544), (3456, 23435), (3488, 23220), (3870, 20928), (3924, 20640), (4128, 19620), (4320, 18748), (4360, 18576), (4644, 17440), (4687, 17280), (4905, 16512), (5160, 15696), (5232, 15480), (5504, 14715), (5760, 14061), (5805, 13952), (5886, 13760), (6192, 13080), (6540, 12384), (6880, 11772), (6976, 11610), (7740, 10464), (7848, 10320), (8256, 9810), (8640, 9374), (8720, 9288)]