255428640

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{19709}}^1$

素因数の和:19736

約数の個数: 120

約数和(自身を含む): 901495980

約数和(自身を除く): 646067340

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, 19709, 39418, 59127, 78836, 98545, 118254, 157672, 177381, 197090, 236508, 295635, 315344, 354762, 394180, 473016, 532143, 591270, 630688, 709524, 788360, 886905, 946032, 1064286, 1182540, 1419048, 1576720, 1596429, 1773810, 1892064, 2128572, 2365080, 2660715, 2838096, 3153440, 3192858, 3547620, 4257144, 4730160, 5321430, 5676192, 6385716, 7095240, 7982145, 8514288, 9460320, 10642860, 12771432, 14190480, 15964290, 17028576, 21285720, 25542864, 28380960, 31928580, 42571440, 51085728, 63857160, 85142880, 127714320, 255428640]

約数ペア:

[(1, 255428640), (2, 127714320), (3, 85142880), (4, 63857160), (5, 51085728), (6, 42571440), (8, 31928580), (9, 28380960), (10, 25542864), (12, 21285720), (15, 17028576), (16, 15964290), (18, 14190480), (20, 12771432), (24, 10642860), (27, 9460320), (30, 8514288), (32, 7982145), (36, 7095240), (40, 6385716), (45, 5676192), (48, 5321430), (54, 4730160), (60, 4257144), (72, 3547620), (80, 3192858), (81, 3153440), (90, 2838096), (96, 2660715), (108, 2365080), (120, 2128572), (135, 1892064), (144, 1773810), (160, 1596429), (162, 1576720), (180, 1419048), (216, 1182540), (240, 1064286), (270, 946032), (288, 886905), (324, 788360), (360, 709524), (405, 630688), (432, 591270), (480, 532143), (540, 473016), (648, 394180), (720, 354762), (810, 315344), (864, 295635), (1080, 236508), (1296, 197090), (1440, 177381), (1620, 157672), (2160, 118254), (2592, 98545), (3240, 78836), (4320, 59127), (6480, 39418), (12960, 19709)]