278549280

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{21493}}^1$

素因数の和:21520

約数の個数: 120

約数和(自身を含む): 983092572

約数和(自身を除く): 704543292

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 21493, 42986, 64479, 85972, 107465, 128958, 171944, 193437, 214930, 257916, 322395, 343888, 386874, 429860, 515832, 580311, 644790, 687776, 773748, 859720, 967185, 1031664, 1160622, 1289580, 1547496, 1719440, 1740933, 1934370, 2063328, 2321244, 2579160, 2901555, 3094992, 3438880, 3481866, 3868740, 4642488, 5158320, 5803110, 6189984, 6963732, 7737480, 8704665, 9284976, 10316640, 11606220, 13927464, 15474960, 17409330, 18569952, 23212440, 27854928, 30949920, 34818660, 46424880, 55709856, 69637320, 92849760, 139274640, 278549280]

約数ペア:

[(1, 278549280), (2, 139274640), (3, 92849760), (4, 69637320), (5, 55709856), (6, 46424880), (8, 34818660), (9, 30949920), (10, 27854928), (12, 23212440), (15, 18569952), (16, 17409330), (18, 15474960), (20, 13927464), (24, 11606220), (27, 10316640), (30, 9284976), (32, 8704665), (36, 7737480), (40, 6963732), (45, 6189984), (48, 5803110), (54, 5158320), (60, 4642488), (72, 3868740), (80, 3481866), (81, 3438880), (90, 3094992), (96, 2901555), (108, 2579160), (120, 2321244), (135, 2063328), (144, 1934370), (160, 1740933), (162, 1719440), (180, 1547496), (216, 1289580), (240, 1160622), (270, 1031664), (288, 967185), (324, 859720), (360, 773748), (405, 687776), (432, 644790), (480, 580311), (540, 515832), (648, 429860), (720, 386874), (810, 343888), (864, 322395), (1080, 257916), (1296, 214930), (1440, 193437), (1620, 171944), (2160, 128958), (2592, 107465), (3240, 85972), (4320, 64479), (6480, 42986), (12960, 21493)]