216781920

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:459

約数の個数: 240

約数和(自身を含む): 784864080

約数和(自身を除く): 568082160

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, 72, 80, 81, 86, 90, 96, 108, 120, 129, 135, 144, 160, 162, 172, 180, 215, 216, 240, 258, 270, 288, 324, 344, 360, 387, 389, 405, 430, 432, 480, 516, 540, 645, 648, 688, 720, 774, 778, 810, 860, 864, 1032, 1080, 1161, 1167, 1290, 1296, 1376, 1440, 1548, 1556, 1620, 1720, 1935, 1945, 2064, 2160, 2322, 2334, 2580, 2592, 3096, 3112, 3240, 3440, 3483, 3501, 3870, 3890, 4128, 4320, 4644, 4668, 5160, 5805, 5835, 6192, 6224, 6480, 6880, 6966, 7002, 7740, 7780, 9288, 9336, 10320, 10503, 11610, 11670, 12384, 12448, 12960, 13932, 14004, 15480, 15560, 16727, 17415, 17505, 18576, 18672, 20640, 21006, 23220, 23340, 27864, 28008, 30960, 31120, 31509, 33454, 34830, 35010, 37152, 37344, 42012, 46440, 46680, 50181, 52515, 55728, 56016, 61920, 62240, 63018, 66908, 69660, 70020, 83635, 84024, 92880, 93360, 100362, 105030, 111456, 112032, 126036, 133816, 139320, 140040, 150543, 157545, 167270, 168048, 185760, 186720, 200724, 210060, 250905, 252072, 267632, 278640, 280080, 301086, 315090, 334540, 336096, 401448, 420120, 451629, 501810, 504144, 535264, 557280, 560160, 602172, 630180, 669080, 752715, 802896, 840240, 903258, 1003620, 1008288, 1204344, 1260360, 1338160, 1354887, 1505430, 1605792, 1680480, 1806516, 2007240, 2258145, 2408688, 2520720, 2676320, 2709774, 3010860, 3613032, 4014480, 4516290, 4817376, 5041440, 5419548, 6021720, 6774435, 7226064, 8028960, 9032580, 10839096, 12043440, 13548870, 14452128, 18065160, 21678192, 24086880, 27097740, 36130320, 43356384, 54195480, 72260640, 108390960, 216781920]

約数ペア:

[(1, 216781920), (2, 108390960), (3, 72260640), (4, 54195480), (5, 43356384), (6, 36130320), (8, 27097740), (9, 24086880), (10, 21678192), (12, 18065160), (15, 14452128), (16, 13548870), (18, 12043440), (20, 10839096), (24, 9032580), (27, 8028960), (30, 7226064), (32, 6774435), (36, 6021720), (40, 5419548), (43, 5041440), (45, 4817376), (48, 4516290), (54, 4014480), (60, 3613032), (72, 3010860), (80, 2709774), (81, 2676320), (86, 2520720), (90, 2408688), (96, 2258145), (108, 2007240), (120, 1806516), (129, 1680480), (135, 1605792), (144, 1505430), (160, 1354887), (162, 1338160), (172, 1260360), (180, 1204344), (215, 1008288), (216, 1003620), (240, 903258), (258, 840240), (270, 802896), (288, 752715), (324, 669080), (344, 630180), (360, 602172), (387, 560160), (389, 557280), (405, 535264), (430, 504144), (432, 501810), (480, 451629), (516, 420120), (540, 401448), (645, 336096), (648, 334540), (688, 315090), (720, 301086), (774, 280080), (778, 278640), (810, 267632), (860, 252072), (864, 250905), (1032, 210060), (1080, 200724), (1161, 186720), (1167, 185760), (1290, 168048), (1296, 167270), (1376, 157545), (1440, 150543), (1548, 140040), (1556, 139320), (1620, 133816), (1720, 126036), (1935, 112032), (1945, 111456), (2064, 105030), (2160, 100362), (2322, 93360), (2334, 92880), (2580, 84024), (2592, 83635), (3096, 70020), (3112, 69660), (3240, 66908), (3440, 63018), (3483, 62240), (3501, 61920), (3870, 56016), (3890, 55728), (4128, 52515), (4320, 50181), (4644, 46680), (4668, 46440), (5160, 42012), (5805, 37344), (5835, 37152), (6192, 35010), (6224, 34830), (6480, 33454), (6880, 31509), (6966, 31120), (7002, 30960), (7740, 28008), (7780, 27864), (9288, 23340), (9336, 23220), (10320, 21006), (10503, 20640), (11610, 18672), (11670, 18576), (12384, 17505), (12448, 17415), (12960, 16727), (13932, 15560), (14004, 15480)]