257508720

素因数分解:

$2^4\times 3^4\times 5^1\times 7^2\times {\mathrm{811}}^1$

素因数の和:850

約数の個数: 300

約数和(自身を含む): 1041667704

約数和(自身を除く): 784158984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 162, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 324, 336, 360, 378, 392, 405, 420, 432, 441, 490, 504, 540, 560, 567, 588, 630, 648, 720, 735, 756, 784, 810, 811, 840, 882, 945, 980, 1008, 1080, 1134, 1176, 1260, 1296, 1323, 1470, 1512, 1620, 1622, 1680, 1764, 1890, 1960, 2160, 2205, 2268, 2352, 2433, 2520, 2646, 2835, 2940, 3024, 3240, 3244, 3528, 3780, 3920, 3969, 4055, 4410, 4536, 4866, 5040, 5292, 5670, 5677, 5880, 6480, 6488, 6615, 7056, 7299, 7560, 7938, 8110, 8820, 9072, 9732, 10584, 11340, 11354, 11760, 12165, 12976, 13230, 14598, 15120, 15876, 16220, 17031, 17640, 19464, 19845, 21168, 21897, 22680, 22708, 24330, 26460, 28385, 29196, 31752, 32440, 34062, 35280, 36495, 38928, 39690, 39739, 43794, 45360, 45416, 48660, 51093, 52920, 56770, 58392, 63504, 64880, 65691, 68124, 72990, 79380, 79478, 85155, 87588, 90832, 97320, 102186, 105840, 109485, 113540, 116784, 119217, 131382, 136248, 145980, 153279, 158760, 158956, 170310, 175176, 194640, 198695, 204372, 218970, 227080, 238434, 255465, 262764, 272496, 291960, 306558, 317520, 317912, 328455, 340620, 350352, 357651, 397390, 408744, 437940, 454160, 459837, 476868, 510930, 525528, 583920, 596085, 613116, 635824, 656910, 681240, 715302, 766395, 794780, 817488, 875880, 919674, 953736, 1021860, 1051056, 1072953, 1192170, 1226232, 1313820, 1362480, 1430604, 1532790, 1589560, 1751760, 1788255, 1839348, 1907472, 2043720, 2145906, 2299185, 2384340, 2452464, 2627640, 2861208, 3065580, 3179120, 3218859, 3576510, 3678696, 4087440, 4291812, 4598370, 4768680, 5255280, 5364765, 5722416, 6131160, 6437718, 7153020, 7357392, 8583624, 9196740, 9537360, 10729530, 12262320, 12875436, 14306040, 16094295, 17167248, 18393480, 21459060, 25750872, 28612080, 32188590, 36786960, 42918120, 51501744, 64377180, 85836240, 128754360, 257508720]

約数ペア:

[(1, 257508720), (2, 128754360), (3, 85836240), (4, 64377180), (5, 51501744), (6, 42918120), (7, 36786960), (8, 32188590), (9, 28612080), (10, 25750872), (12, 21459060), (14, 18393480), (15, 17167248), (16, 16094295), (18, 14306040), (20, 12875436), (21, 12262320), (24, 10729530), (27, 9537360), (28, 9196740), (30, 8583624), (35, 7357392), (36, 7153020), (40, 6437718), (42, 6131160), (45, 5722416), (48, 5364765), (49, 5255280), (54, 4768680), (56, 4598370), (60, 4291812), (63, 4087440), (70, 3678696), (72, 3576510), (80, 3218859), (81, 3179120), (84, 3065580), (90, 2861208), (98, 2627640), (105, 2452464), (108, 2384340), (112, 2299185), (120, 2145906), (126, 2043720), (135, 1907472), (140, 1839348), (144, 1788255), (147, 1751760), (162, 1589560), (168, 1532790), (180, 1430604), (189, 1362480), (196, 1313820), (210, 1226232), (216, 1192170), (240, 1072953), (245, 1051056), (252, 1021860), (270, 953736), (280, 919674), (294, 875880), (315, 817488), (324, 794780), (336, 766395), (360, 715302), (378, 681240), (392, 656910), (405, 635824), (420, 613116), (432, 596085), (441, 583920), (490, 525528), (504, 510930), (540, 476868), (560, 459837), (567, 454160), (588, 437940), (630, 408744), (648, 397390), (720, 357651), (735, 350352), (756, 340620), (784, 328455), (810, 317912), (811, 317520), (840, 306558), (882, 291960), (945, 272496), (980, 262764), (1008, 255465), (1080, 238434), (1134, 227080), (1176, 218970), (1260, 204372), (1296, 198695), (1323, 194640), (1470, 175176), (1512, 170310), (1620, 158956), (1622, 158760), (1680, 153279), (1764, 145980), (1890, 136248), (1960, 131382), (2160, 119217), (2205, 116784), (2268, 113540), (2352, 109485), (2433, 105840), (2520, 102186), (2646, 97320), (2835, 90832), (2940, 87588), (3024, 85155), (3240, 79478), (3244, 79380), (3528, 72990), (3780, 68124), (3920, 65691), (3969, 64880), (4055, 63504), (4410, 58392), (4536, 56770), (4866, 52920), (5040, 51093), (5292, 48660), (5670, 45416), (5677, 45360), (5880, 43794), (6480, 39739), (6488, 39690), (6615, 38928), (7056, 36495), (7299, 35280), (7560, 34062), (7938, 32440), (8110, 31752), (8820, 29196), (9072, 28385), (9732, 26460), (10584, 24330), (11340, 22708), (11354, 22680), (11760, 21897), (12165, 21168), (12976, 19845), (13230, 19464), (14598, 17640), (15120, 17031), (15876, 16220)]