257765760

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{2131}}^1$

素因数の和:2166

約数の個数: 256

約数和(自身を含む): 1043827200

約数和(自身を除く): 786061440

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, 2131, 2160, 2240, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 4032, 4262, 4320, 4480, 5040, 5760, 6048, 6393, 6720, 7560, 8064, 8524, 8640, 10080, 10655, 12096, 12786, 13440, 14917, 15120, 17048, 17280, 19179, 20160, 21310, 24192, 25572, 29834, 30240, 31965, 34096, 38358, 40320, 42620, 44751, 51144, 57537, 59668, 60480, 63930, 68192, 74585, 76716, 85240, 89502, 95895, 102288, 115074, 119336, 120960, 127860, 134253, 136384, 149170, 153432, 170480, 179004, 191790, 204576, 223755, 230148, 238672, 255720, 268506, 272768, 287685, 298340, 306864, 340960, 358008, 383580, 402759, 409152, 447510, 460296, 477344, 511440, 537012, 575370, 596680, 613728, 671265, 681920, 716016, 767160, 805518, 818304, 895020, 920592, 954688, 1022880, 1074024, 1150740, 1193360, 1227456, 1342530, 1363840, 1432032, 1534320, 1611036, 1790040, 1841184, 1909376, 2013795, 2045760, 2148048, 2301480, 2386720, 2454912, 2685060, 2864064, 3068640, 3222072, 3580080, 3682368, 4027590, 4091520, 4296096, 4602960, 4773440, 5370120, 5728128, 6137280, 6444144, 7160160, 7364736, 8055180, 8592192, 9205920, 9546880, 10740240, 12274560, 12888288, 14320320, 16110360, 17184384, 18411840, 21480480, 25776576, 28640640, 32220720, 36823680, 42960960, 51553152, 64441440, 85921920, 128882880, 257765760]

約数ペア:

[(1, 257765760), (2, 128882880), (3, 85921920), (4, 64441440), (5, 51553152), (6, 42960960), (7, 36823680), (8, 32220720), (9, 28640640), (10, 25776576), (12, 21480480), (14, 18411840), (15, 17184384), (16, 16110360), (18, 14320320), (20, 12888288), (21, 12274560), (24, 10740240), (27, 9546880), (28, 9205920), (30, 8592192), (32, 8055180), (35, 7364736), (36, 7160160), (40, 6444144), (42, 6137280), (45, 5728128), (48, 5370120), (54, 4773440), (56, 4602960), (60, 4296096), (63, 4091520), (64, 4027590), (70, 3682368), (72, 3580080), (80, 3222072), (84, 3068640), (90, 2864064), (96, 2685060), (105, 2454912), (108, 2386720), (112, 2301480), (120, 2148048), (126, 2045760), (128, 2013795), (135, 1909376), (140, 1841184), (144, 1790040), (160, 1611036), (168, 1534320), (180, 1432032), (189, 1363840), (192, 1342530), (210, 1227456), (216, 1193360), (224, 1150740), (240, 1074024), (252, 1022880), (270, 954688), (280, 920592), (288, 895020), (315, 818304), (320, 805518), (336, 767160), (360, 716016), (378, 681920), (384, 671265), (420, 613728), (432, 596680), (448, 575370), (480, 537012), (504, 511440), (540, 477344), (560, 460296), (576, 447510), (630, 409152), (640, 402759), (672, 383580), (720, 358008), (756, 340960), (840, 306864), (864, 298340), (896, 287685), (945, 272768), (960, 268506), (1008, 255720), (1080, 238672), (1120, 230148), (1152, 223755), (1260, 204576), (1344, 191790), (1440, 179004), (1512, 170480), (1680, 153432), (1728, 149170), (1890, 136384), (1920, 134253), (2016, 127860), (2131, 120960), (2160, 119336), (2240, 115074), (2520, 102288), (2688, 95895), (2880, 89502), (3024, 85240), (3360, 76716), (3456, 74585), (3780, 68192), (4032, 63930), (4262, 60480), (4320, 59668), (4480, 57537), (5040, 51144), (5760, 44751), (6048, 42620), (6393, 40320), (6720, 38358), (7560, 34096), (8064, 31965), (8524, 30240), (8640, 29834), (10080, 25572), (10655, 24192), (12096, 21310), (12786, 20160), (13440, 19179), (14917, 17280), (15120, 17048)]