257523840

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{2129}}^1$

素因数の和:2164

約数の個数: 256

約数和(自身を含む): 1042848000

約数和(自身を除く): 785324160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1344, 1440, 1512, 1680, 1728, 1890, 1920, 2016, 2129, 2160, 2240, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 4032, 4258, 4320, 4480, 5040, 5760, 6048, 6387, 6720, 7560, 8064, 8516, 8640, 10080, 10645, 12096, 12774, 13440, 14903, 15120, 17032, 17280, 19161, 20160, 21290, 24192, 25548, 29806, 30240, 31935, 34064, 38322, 40320, 42580, 44709, 51096, 57483, 59612, 60480, 63870, 68128, 74515, 76644, 85160, 89418, 95805, 102192, 114966, 119224, 120960, 127740, 134127, 136256, 149030, 153288, 170320, 178836, 191610, 204384, 223545, 229932, 238448, 255480, 268254, 272512, 287415, 298060, 306576, 340640, 357672, 383220, 402381, 408768, 447090, 459864, 476896, 510960, 536508, 574830, 596120, 613152, 670635, 681280, 715344, 766440, 804762, 817536, 894180, 919728, 953792, 1021920, 1073016, 1149660, 1192240, 1226304, 1341270, 1362560, 1430688, 1532880, 1609524, 1788360, 1839456, 1907584, 2011905, 2043840, 2146032, 2299320, 2384480, 2452608, 2682540, 2861376, 3065760, 3219048, 3576720, 3678912, 4023810, 4087680, 4292064, 4598640, 4768960, 5365080, 5722752, 6131520, 6438096, 7153440, 7357824, 8047620, 8584128, 9197280, 9537920, 10730160, 12263040, 12876192, 14306880, 16095240, 17168256, 18394560, 21460320, 25752384, 28613760, 32190480, 36789120, 42920640, 51504768, 64380960, 85841280, 128761920, 257523840]

約数ペア:

[(1, 257523840), (2, 128761920), (3, 85841280), (4, 64380960), (5, 51504768), (6, 42920640), (7, 36789120), (8, 32190480), (9, 28613760), (10, 25752384), (12, 21460320), (14, 18394560), (15, 17168256), (16, 16095240), (18, 14306880), (20, 12876192), (21, 12263040), (24, 10730160), (27, 9537920), (28, 9197280), (30, 8584128), (32, 8047620), (35, 7357824), (36, 7153440), (40, 6438096), (42, 6131520), (45, 5722752), (48, 5365080), (54, 4768960), (56, 4598640), (60, 4292064), (63, 4087680), (64, 4023810), (70, 3678912), (72, 3576720), (80, 3219048), (84, 3065760), (90, 2861376), (96, 2682540), (105, 2452608), (108, 2384480), (112, 2299320), (120, 2146032), (126, 2043840), (128, 2011905), (135, 1907584), (140, 1839456), (144, 1788360), (160, 1609524), (168, 1532880), (180, 1430688), (189, 1362560), (192, 1341270), (210, 1226304), (216, 1192240), (224, 1149660), (240, 1073016), (252, 1021920), (270, 953792), (280, 919728), (288, 894180), (315, 817536), (320, 804762), (336, 766440), (360, 715344), (378, 681280), (384, 670635), (420, 613152), (432, 596120), (448, 574830), (480, 536508), (504, 510960), (540, 476896), (560, 459864), (576, 447090), (630, 408768), (640, 402381), (672, 383220), (720, 357672), (756, 340640), (840, 306576), (864, 298060), (896, 287415), (945, 272512), (960, 268254), (1008, 255480), (1080, 238448), (1120, 229932), (1152, 223545), (1260, 204384), (1344, 191610), (1440, 178836), (1512, 170320), (1680, 153288), (1728, 149030), (1890, 136256), (1920, 134127), (2016, 127740), (2129, 120960), (2160, 119224), (2240, 114966), (2520, 102192), (2688, 95805), (2880, 89418), (3024, 85160), (3360, 76644), (3456, 74515), (3780, 68128), (4032, 63870), (4258, 60480), (4320, 59612), (4480, 57483), (5040, 51096), (5760, 44709), (6048, 42580), (6387, 40320), (6720, 38322), (7560, 34064), (8064, 31935), (8516, 30240), (8640, 29806), (10080, 25548), (10645, 24192), (12096, 21290), (12774, 20160), (13440, 19161), (14903, 17280), (15120, 17032)]