278887680

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:633

約数の個数: 216

約数和(自身を含む): 989116128

約数和(自身を除く): 710228448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 43, 45, 48, 60, 64, 72, 80, 86, 90, 96, 120, 128, 129, 144, 160, 172, 180, 192, 215, 240, 256, 258, 288, 320, 344, 360, 384, 387, 430, 480, 516, 563, 576, 640, 645, 688, 720, 768, 774, 860, 960, 1032, 1126, 1152, 1280, 1290, 1376, 1440, 1548, 1689, 1720, 1920, 1935, 2064, 2252, 2304, 2580, 2752, 2815, 2880, 3096, 3378, 3440, 3840, 3870, 4128, 4504, 5067, 5160, 5504, 5630, 5760, 6192, 6756, 6880, 7740, 8256, 8445, 9008, 10134, 10320, 11008, 11260, 11520, 12384, 13512, 13760, 15480, 16512, 16890, 18016, 20268, 20640, 22520, 24209, 24768, 25335, 27024, 27520, 30960, 33024, 33780, 36032, 40536, 41280, 45040, 48418, 49536, 50670, 54048, 55040, 61920, 67560, 72064, 72627, 81072, 82560, 90080, 96836, 99072, 101340, 108096, 121045, 123840, 135120, 144128, 145254, 162144, 165120, 180160, 193672, 202680, 216192, 217881, 242090, 247680, 270240, 290508, 324288, 360320, 363135, 387344, 405360, 432384, 435762, 484180, 495360, 540480, 581016, 648576, 720640, 726270, 774688, 810720, 871524, 968360, 1080960, 1089405, 1162032, 1297152, 1452540, 1549376, 1621440, 1743048, 1936720, 2161920, 2178810, 2324064, 2905080, 3098752, 3242880, 3486096, 3873440, 4357620, 4648128, 5810160, 6197504, 6485760, 6972192, 7746880, 8715240, 9296256, 11620320, 13944384, 15493760, 17430480, 18592512, 23240640, 27888768, 30987520, 34860960, 46481280, 55777536, 69721920, 92962560, 139443840, 278887680]

約数ペア:

[(1, 278887680), (2, 139443840), (3, 92962560), (4, 69721920), (5, 55777536), (6, 46481280), (8, 34860960), (9, 30987520), (10, 27888768), (12, 23240640), (15, 18592512), (16, 17430480), (18, 15493760), (20, 13944384), (24, 11620320), (30, 9296256), (32, 8715240), (36, 7746880), (40, 6972192), (43, 6485760), (45, 6197504), (48, 5810160), (60, 4648128), (64, 4357620), (72, 3873440), (80, 3486096), (86, 3242880), (90, 3098752), (96, 2905080), (120, 2324064), (128, 2178810), (129, 2161920), (144, 1936720), (160, 1743048), (172, 1621440), (180, 1549376), (192, 1452540), (215, 1297152), (240, 1162032), (256, 1089405), (258, 1080960), (288, 968360), (320, 871524), (344, 810720), (360, 774688), (384, 726270), (387, 720640), (430, 648576), (480, 581016), (516, 540480), (563, 495360), (576, 484180), (640, 435762), (645, 432384), (688, 405360), (720, 387344), (768, 363135), (774, 360320), (860, 324288), (960, 290508), (1032, 270240), (1126, 247680), (1152, 242090), (1280, 217881), (1290, 216192), (1376, 202680), (1440, 193672), (1548, 180160), (1689, 165120), (1720, 162144), (1920, 145254), (1935, 144128), (2064, 135120), (2252, 123840), (2304, 121045), (2580, 108096), (2752, 101340), (2815, 99072), (2880, 96836), (3096, 90080), (3378, 82560), (3440, 81072), (3840, 72627), (3870, 72064), (4128, 67560), (4504, 61920), (5067, 55040), (5160, 54048), (5504, 50670), (5630, 49536), (5760, 48418), (6192, 45040), (6756, 41280), (6880, 40536), (7740, 36032), (8256, 33780), (8445, 33024), (9008, 30960), (10134, 27520), (10320, 27024), (11008, 25335), (11260, 24768), (11520, 24209), (12384, 22520), (13512, 20640), (13760, 20268), (15480, 18016), (16512, 16890)]