256087440

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{16937}}^1$

素因数の和:16966

約数の個数: 160

約数和(自身を含む): 1008149760

約数和(自身を除く): 752062320

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, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 16937, 33874, 50811, 67748, 84685, 101622, 118559, 135496, 152433, 169370, 203244, 237118, 254055, 270992, 304866, 338740, 355677, 406488, 457299, 474236, 508110, 592795, 609732, 677480, 711354, 762165, 812976, 914598, 948472, 1016220, 1067031, 1185590, 1219464, 1354960, 1422708, 1524330, 1778385, 1829196, 1896944, 2032440, 2134062, 2286495, 2371180, 2438928, 2845416, 3048660, 3201093, 3556770, 3658392, 4064880, 4268124, 4572990, 4742360, 5335155, 5690832, 6097320, 6402186, 7113540, 7316784, 8536248, 9145980, 9484720, 10670310, 12194640, 12804372, 14227080, 16005465, 17072496, 18291960, 21340620, 25608744, 28454160, 32010930, 36583920, 42681240, 51217488, 64021860, 85362480, 128043720, 256087440]

約数ペア:

[(1, 256087440), (2, 128043720), (3, 85362480), (4, 64021860), (5, 51217488), (6, 42681240), (7, 36583920), (8, 32010930), (9, 28454160), (10, 25608744), (12, 21340620), (14, 18291960), (15, 17072496), (16, 16005465), (18, 14227080), (20, 12804372), (21, 12194640), (24, 10670310), (27, 9484720), (28, 9145980), (30, 8536248), (35, 7316784), (36, 7113540), (40, 6402186), (42, 6097320), (45, 5690832), (48, 5335155), (54, 4742360), (56, 4572990), (60, 4268124), (63, 4064880), (70, 3658392), (72, 3556770), (80, 3201093), (84, 3048660), (90, 2845416), (105, 2438928), (108, 2371180), (112, 2286495), (120, 2134062), (126, 2032440), (135, 1896944), (140, 1829196), (144, 1778385), (168, 1524330), (180, 1422708), (189, 1354960), (210, 1219464), (216, 1185590), (240, 1067031), (252, 1016220), (270, 948472), (280, 914598), (315, 812976), (336, 762165), (360, 711354), (378, 677480), (420, 609732), (432, 592795), (504, 508110), (540, 474236), (560, 457299), (630, 406488), (720, 355677), (756, 338740), (840, 304866), (945, 270992), (1008, 254055), (1080, 237118), (1260, 203244), (1512, 169370), (1680, 152433), (1890, 135496), (2160, 118559), (2520, 101622), (3024, 84685), (3780, 67748), (5040, 50811), (7560, 33874), (15120, 16937)]