257372640

素因数分解:

$2^5\times 3^4\times 5^1\times 7^1\times {\mathrm{2837}}^1$

素因数の和:2871

約数の個数: 240

約数和(自身を含む): 1038435552

約数和(自身を除く): 781062912

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, 70, 72, 80, 81, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 162, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 324, 336, 360, 378, 405, 420, 432, 480, 504, 540, 560, 567, 630, 648, 672, 720, 756, 810, 840, 864, 945, 1008, 1080, 1120, 1134, 1260, 1296, 1440, 1512, 1620, 1680, 1890, 2016, 2160, 2268, 2520, 2592, 2835, 2837, 3024, 3240, 3360, 3780, 4320, 4536, 5040, 5670, 5674, 6048, 6480, 7560, 8511, 9072, 10080, 11340, 11348, 12960, 14185, 15120, 17022, 18144, 19859, 22680, 22696, 25533, 28370, 30240, 34044, 39718, 42555, 45360, 45392, 51066, 56740, 59577, 68088, 76599, 79436, 85110, 90720, 90784, 99295, 102132, 113480, 119154, 127665, 136176, 153198, 158872, 170220, 178731, 198590, 204264, 226960, 229797, 238308, 255330, 272352, 297885, 306396, 317744, 340440, 357462, 382995, 397180, 408528, 453920, 459594, 476616, 510660, 536193, 595770, 612792, 635488, 680880, 714924, 765990, 794360, 817056, 893655, 919188, 953232, 1021320, 1072386, 1148985, 1191540, 1225584, 1361760, 1429848, 1531980, 1588720, 1608579, 1787310, 1838376, 1906464, 2042640, 2144772, 2297970, 2383080, 2451168, 2680965, 2859696, 3063960, 3177440, 3217158, 3574620, 3676752, 4085280, 4289544, 4595940, 4766160, 5361930, 5719392, 6127920, 6434316, 7149240, 7353504, 8042895, 8579088, 9191880, 9532320, 10723860, 12255840, 12868632, 14298480, 16085790, 17158176, 18383760, 21447720, 25737264, 28596960, 32171580, 36767520, 42895440, 51474528, 64343160, 85790880, 128686320, 257372640]

約数ペア:

[(1, 257372640), (2, 128686320), (3, 85790880), (4, 64343160), (5, 51474528), (6, 42895440), (7, 36767520), (8, 32171580), (9, 28596960), (10, 25737264), (12, 21447720), (14, 18383760), (15, 17158176), (16, 16085790), (18, 14298480), (20, 12868632), (21, 12255840), (24, 10723860), (27, 9532320), (28, 9191880), (30, 8579088), (32, 8042895), (35, 7353504), (36, 7149240), (40, 6434316), (42, 6127920), (45, 5719392), (48, 5361930), (54, 4766160), (56, 4595940), (60, 4289544), (63, 4085280), (70, 3676752), (72, 3574620), (80, 3217158), (81, 3177440), (84, 3063960), (90, 2859696), (96, 2680965), (105, 2451168), (108, 2383080), (112, 2297970), (120, 2144772), (126, 2042640), (135, 1906464), (140, 1838376), (144, 1787310), (160, 1608579), (162, 1588720), (168, 1531980), (180, 1429848), (189, 1361760), (210, 1225584), (216, 1191540), (224, 1148985), (240, 1072386), (252, 1021320), (270, 953232), (280, 919188), (288, 893655), (315, 817056), (324, 794360), (336, 765990), (360, 714924), (378, 680880), (405, 635488), (420, 612792), (432, 595770), (480, 536193), (504, 510660), (540, 476616), (560, 459594), (567, 453920), (630, 408528), (648, 397180), (672, 382995), (720, 357462), (756, 340440), (810, 317744), (840, 306396), (864, 297885), (945, 272352), (1008, 255330), (1080, 238308), (1120, 229797), (1134, 226960), (1260, 204264), (1296, 198590), (1440, 178731), (1512, 170220), (1620, 158872), (1680, 153198), (1890, 136176), (2016, 127665), (2160, 119154), (2268, 113480), (2520, 102132), (2592, 99295), (2835, 90784), (2837, 90720), (3024, 85110), (3240, 79436), (3360, 76599), (3780, 68088), (4320, 59577), (4536, 56740), (5040, 51066), (5670, 45392), (5674, 45360), (6048, 42555), (6480, 39718), (7560, 34044), (8511, 30240), (9072, 28370), (10080, 25533), (11340, 22696), (11348, 22680), (12960, 19859), (14185, 18144), (15120, 17022)]