256021920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2309}}^1$

素因数の和:2348

約数の個数: 288

約数和(自身を含む): 1089728640

約数和(自身を除く): 833706720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 20, 21, 22, 24, 28, 30, 32, 33, 35, 36, 40, 42, 44, 45, 48, 55, 56, 60, 63, 66, 70, 72, 77, 80, 84, 88, 90, 96, 99, 105, 110, 112, 120, 126, 132, 140, 144, 154, 160, 165, 168, 176, 180, 198, 210, 220, 224, 231, 240, 252, 264, 280, 288, 308, 315, 330, 336, 352, 360, 385, 396, 420, 440, 462, 480, 495, 504, 528, 560, 616, 630, 660, 672, 693, 720, 770, 792, 840, 880, 924, 990, 1008, 1056, 1120, 1155, 1232, 1260, 1320, 1386, 1440, 1540, 1584, 1680, 1760, 1848, 1980, 2016, 2309, 2310, 2464, 2520, 2640, 2772, 3080, 3168, 3360, 3465, 3696, 3960, 4618, 4620, 5040, 5280, 5544, 6160, 6927, 6930, 7392, 7920, 9236, 9240, 10080, 11088, 11545, 12320, 13854, 13860, 15840, 16163, 18472, 18480, 20781, 22176, 23090, 25399, 27708, 27720, 32326, 34635, 36944, 36960, 41562, 46180, 48489, 50798, 55416, 55440, 64652, 69270, 73888, 76197, 80815, 83124, 92360, 96978, 101596, 103905, 110832, 110880, 126995, 129304, 138540, 145467, 152394, 161630, 166248, 177793, 184720, 193956, 203192, 207810, 221664, 228591, 242445, 253990, 258608, 277080, 290934, 304788, 323260, 332496, 355586, 369440, 380985, 387912, 406384, 415620, 457182, 484890, 507980, 517216, 533379, 554160, 581868, 609576, 646520, 664992, 711172, 727335, 761970, 775824, 812768, 831240, 888965, 914364, 969780, 1015960, 1066758, 1108320, 1142955, 1163736, 1219152, 1293040, 1422344, 1454670, 1523940, 1551648, 1600137, 1662480, 1777930, 1828728, 1939560, 2031920, 2133516, 2285910, 2327472, 2438304, 2586080, 2666895, 2844688, 2909340, 3047880, 3200274, 3324960, 3555860, 3657456, 3879120, 4063840, 4267032, 4571820, 4654944, 5333790, 5689376, 5818680, 6095760, 6400548, 7111720, 7314912, 7758240, 8000685, 8534064, 9143640, 10667580, 11637360, 12191520, 12801096, 14223440, 16001370, 17068128, 18287280, 21335160, 23274720, 25602192, 28446880, 32002740, 36574560, 42670320, 51204384, 64005480, 85340640, 128010960, 256021920]

約数ペア:

[(1, 256021920), (2, 128010960), (3, 85340640), (4, 64005480), (5, 51204384), (6, 42670320), (7, 36574560), (8, 32002740), (9, 28446880), (10, 25602192), (11, 23274720), (12, 21335160), (14, 18287280), (15, 17068128), (16, 16001370), (18, 14223440), (20, 12801096), (21, 12191520), (22, 11637360), (24, 10667580), (28, 9143640), (30, 8534064), (32, 8000685), (33, 7758240), (35, 7314912), (36, 7111720), (40, 6400548), (42, 6095760), (44, 5818680), (45, 5689376), (48, 5333790), (55, 4654944), (56, 4571820), (60, 4267032), (63, 4063840), (66, 3879120), (70, 3657456), (72, 3555860), (77, 3324960), (80, 3200274), (84, 3047880), (88, 2909340), (90, 2844688), (96, 2666895), (99, 2586080), (105, 2438304), (110, 2327472), (112, 2285910), (120, 2133516), (126, 2031920), (132, 1939560), (140, 1828728), (144, 1777930), (154, 1662480), (160, 1600137), (165, 1551648), (168, 1523940), (176, 1454670), (180, 1422344), (198, 1293040), (210, 1219152), (220, 1163736), (224, 1142955), (231, 1108320), (240, 1066758), (252, 1015960), (264, 969780), (280, 914364), (288, 888965), (308, 831240), (315, 812768), (330, 775824), (336, 761970), (352, 727335), (360, 711172), (385, 664992), (396, 646520), (420, 609576), (440, 581868), (462, 554160), (480, 533379), (495, 517216), (504, 507980), (528, 484890), (560, 457182), (616, 415620), (630, 406384), (660, 387912), (672, 380985), (693, 369440), (720, 355586), (770, 332496), (792, 323260), (840, 304788), (880, 290934), (924, 277080), (990, 258608), (1008, 253990), (1056, 242445), (1120, 228591), (1155, 221664), (1232, 207810), (1260, 203192), (1320, 193956), (1386, 184720), (1440, 177793), (1540, 166248), (1584, 161630), (1680, 152394), (1760, 145467), (1848, 138540), (1980, 129304), (2016, 126995), (2309, 110880), (2310, 110832), (2464, 103905), (2520, 101596), (2640, 96978), (2772, 92360), (3080, 83124), (3168, 80815), (3360, 76197), (3465, 73888), (3696, 69270), (3960, 64652), (4618, 55440), (4620, 55416), (5040, 50798), (5280, 48489), (5544, 46180), (6160, 41562), (6927, 36960), (6930, 36944), (7392, 34635), (7920, 32326), (9236, 27720), (9240, 27708), (10080, 25399), (11088, 23090), (11545, 22176), (12320, 20781), (13854, 18480), (13860, 18472), (15840, 16163)]