20165760

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{389}}^1$

素因数の和:420

約数の個数: 160

約数和(自身を含む): 72200700

約数和(自身を除く): 52034940

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, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 389, 405, 432, 480, 540, 576, 640, 648, 720, 778, 810, 864, 960, 1080, 1152, 1167, 1296, 1440, 1556, 1620, 1728, 1920, 1945, 2160, 2334, 2592, 2880, 3112, 3240, 3456, 3501, 3890, 4320, 4668, 5184, 5760, 5835, 6224, 6480, 7002, 7780, 8640, 9336, 10368, 10503, 11670, 12448, 12960, 14004, 15560, 17280, 17505, 18672, 21006, 23340, 24896, 25920, 28008, 31120, 31509, 35010, 37344, 42012, 46680, 49792, 51840, 52515, 56016, 62240, 63018, 70020, 74688, 84024, 93360, 105030, 112032, 124480, 126036, 140040, 149376, 157545, 168048, 186720, 210060, 224064, 248960, 252072, 280080, 315090, 336096, 373440, 420120, 448128, 504144, 560160, 630180, 672192, 746880, 840240, 1008288, 1120320, 1260360, 1344384, 1680480, 2016576, 2240640, 2520720, 3360960, 4033152, 5041440, 6721920, 10082880, 20165760]

約数ペア:

[(1, 20165760), (2, 10082880), (3, 6721920), (4, 5041440), (5, 4033152), (6, 3360960), (8, 2520720), (9, 2240640), (10, 2016576), (12, 1680480), (15, 1344384), (16, 1260360), (18, 1120320), (20, 1008288), (24, 840240), (27, 746880), (30, 672192), (32, 630180), (36, 560160), (40, 504144), (45, 448128), (48, 420120), (54, 373440), (60, 336096), (64, 315090), (72, 280080), (80, 252072), (81, 248960), (90, 224064), (96, 210060), (108, 186720), (120, 168048), (128, 157545), (135, 149376), (144, 140040), (160, 126036), (162, 124480), (180, 112032), (192, 105030), (216, 93360), (240, 84024), (270, 74688), (288, 70020), (320, 63018), (324, 62240), (360, 56016), (384, 52515), (389, 51840), (405, 49792), (432, 46680), (480, 42012), (540, 37344), (576, 35010), (640, 31509), (648, 31120), (720, 28008), (778, 25920), (810, 24896), (864, 23340), (960, 21006), (1080, 18672), (1152, 17505), (1167, 17280), (1296, 15560), (1440, 14004), (1556, 12960), (1620, 12448), (1728, 11670), (1920, 10503), (1945, 10368), (2160, 9336), (2334, 8640), (2592, 7780), (2880, 7002), (3112, 6480), (3240, 6224), (3456, 5835), (3501, 5760), (3890, 5184), (4320, 4668)]