256354560

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2$

素因数の和:79

約数の個数: 648

約数和(自身を含む): 1174694976

約数和(自身を除く): 918340416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 20, 21, 22, 24, 28, 30, 32, 33, 34, 35, 36, 40, 42, 44, 45, 48, 51, 55, 56, 60, 63, 64, 66, 68, 70, 72, 77, 80, 84, 85, 88, 90, 96, 99, 102, 105, 110, 112, 119, 120, 126, 128, 132, 136, 140, 144, 153, 154, 160, 165, 168, 170, 176, 180, 187, 192, 198, 204, 210, 220, 224, 231, 238, 240, 252, 255, 256, 264, 272, 280, 288, 289, 306, 308, 315, 320, 330, 336, 340, 352, 357, 360, 374, 384, 385, 396, 408, 420, 440, 448, 462, 476, 480, 495, 504, 510, 528, 544, 560, 561, 576, 578, 595, 612, 616, 630, 640, 660, 672, 680, 693, 704, 714, 720, 748, 765, 768, 770, 792, 816, 840, 867, 880, 896, 924, 935, 952, 960, 990, 1008, 1020, 1056, 1071, 1088, 1120, 1122, 1152, 1155, 1156, 1190, 1224, 1232, 1260, 1280, 1309, 1320, 1344, 1360, 1386, 1408, 1428, 1440, 1445, 1496, 1530, 1540, 1584, 1632, 1680, 1683, 1734, 1760, 1785, 1792, 1848, 1870, 1904, 1920, 1980, 2016, 2023, 2040, 2112, 2142, 2176, 2240, 2244, 2304, 2310, 2312, 2380, 2448, 2464, 2520, 2601, 2618, 2640, 2688, 2720, 2772, 2805, 2816, 2856, 2880, 2890, 2992, 3060, 3080, 3168, 3179, 3264, 3360, 3366, 3465, 3468, 3520, 3570, 3696, 3740, 3808, 3840, 3927, 3960, 4032, 4046, 4080, 4224, 4284, 4335, 4352, 4480, 4488, 4620, 4624, 4760, 4896, 4928, 5040, 5202, 5236, 5280, 5355, 5376, 5440, 5544, 5610, 5712, 5760, 5780, 5984, 6069, 6120, 6160, 6336, 6358, 6528, 6545, 6720, 6732, 6930, 6936, 7040, 7140, 7392, 7480, 7616, 7854, 7920, 8064, 8092, 8160, 8415, 8448, 8568, 8670, 8960, 8976, 9240, 9248, 9520, 9537, 9792, 9856, 10080, 10115, 10404, 10472, 10560, 10710, 10880, 11088, 11220, 11424, 11520, 11560, 11781, 11968, 12138, 12240, 12320, 12672, 12716, 13005, 13056, 13090, 13440, 13464, 13860, 13872, 14080, 14280, 14784, 14960, 15232, 15708, 15840, 15895, 16128, 16184, 16320, 16830, 17136, 17340, 17952, 18207, 18480, 18496, 19040, 19074, 19584, 19635, 19712, 20160, 20230, 20808, 20944, 21120, 21420, 21760, 22176, 22253, 22440, 22848, 23120, 23562, 23936, 24276, 24480, 24640, 25344, 25432, 26010, 26180, 26880, 26928, 27720, 27744, 28560, 28611, 29568, 29920, 30345, 30464, 31416, 31680, 31790, 32368, 32640, 33660, 34272, 34680, 35904, 36414, 36960, 36992, 38080, 38148, 39168, 39270, 40320, 40460, 41616, 41888, 42240, 42840, 44352, 44506, 44880, 45696, 46240, 47124, 47685, 47872, 48552, 48960, 49280, 50864, 52020, 52360, 53856, 55440, 55488, 57120, 57222, 58905, 59136, 59840, 60690, 62832, 63360, 63580, 64736, 65280, 66759, 67320, 68544, 69360, 71808, 72828, 73920, 73984, 76160, 76296, 78540, 80640, 80920, 83232, 83776, 85680, 88704, 89012, 89760, 91035, 91392, 92480, 94248, 95370, 97104, 97920, 98560, 101728, 104040, 104720, 107712, 110880, 110976, 111265, 114240, 114444, 117810, 119680, 121380, 125664, 126720, 127160, 129472, 133518, 134640, 137088, 138720, 143055, 143616, 145656, 147840, 152320, 152592, 157080, 161840, 166464, 167552, 171360, 177408, 178024, 179520, 182070, 184960, 188496, 190740, 194208, 195840, 200277, 203456, 208080, 209440, 215424, 221760, 221952, 222530, 228480, 228888, 235620, 239360, 242760, 251328, 254320, 258944, 267036, 269280, 274176, 277440, 286110, 291312, 295680, 305184, 314160, 323680, 332928, 333795, 335104, 342720, 356048, 359040, 364140, 369920, 376992, 381480, 388416, 400554, 406912, 416160, 418880, 430848, 443520, 445060, 456960, 457776, 471240, 485520, 502656, 508640, 517888, 534072, 538560, 554880, 572220, 582624, 610368, 628320, 647360, 665856, 667590, 685440, 712096, 718080, 728280, 753984, 762960, 776832, 801108, 813824, 832320, 837760, 887040, 890120, 915552, 942480, 971040, 1001385, 1005312, 1017280, 1068144, 1077120, 1109760, 1144440, 1165248, 1220736, 1256640, 1294720, 1335180, 1370880, 1424192, 1456560, 1507968, 1525920, 1553664, 1602216, 1664640, 1675520, 1780240, 1831104, 1884960, 1942080, 2002770, 2034560, 2136288, 2154240, 2288880, 2330496, 2441472, 2513280, 2589440, 2670360, 2848384, 2913120, 3015936, 3051840, 3204432, 3329280, 3560480, 3662208, 3769920, 3884160, 4005540, 4069120, 4272576, 4577760, 4660992, 5026560, 5340720, 5696768, 5826240, 6103680, 6408864, 7120960, 7324416, 7539840, 7768320, 8011080, 8545152, 9155520, 10681440, 11652480, 12207360, 12817728, 14241920, 15079680, 16022160, 17090304, 18311040, 21362880, 23304960, 25635456, 28483840, 32044320, 36622080, 42725760, 51270912, 64088640, 85451520, 128177280, 256354560]

約数ペア:

[(1, 256354560), (2, 128177280), (3, 85451520), (4, 64088640), (5, 51270912), (6, 42725760), (7, 36622080), (8, 32044320), (9, 28483840), (10, 25635456), (11, 23304960), (12, 21362880), (14, 18311040), (15, 17090304), (16, 16022160), (17, 15079680), (18, 14241920), (20, 12817728), (21, 12207360), (22, 11652480), (24, 10681440), (28, 9155520), (30, 8545152), (32, 8011080), (33, 7768320), (34, 7539840), (35, 7324416), (36, 7120960), (40, 6408864), (42, 6103680), (44, 5826240), (45, 5696768), (48, 5340720), (51, 5026560), (55, 4660992), (56, 4577760), (60, 4272576), (63, 4069120), (64, 4005540), (66, 3884160), (68, 3769920), (70, 3662208), (72, 3560480), (77, 3329280), (80, 3204432), (84, 3051840), (85, 3015936), (88, 2913120), (90, 2848384), (96, 2670360), (99, 2589440), (102, 2513280), (105, 2441472), (110, 2330496), (112, 2288880), (119, 2154240), (120, 2136288), (126, 2034560), (128, 2002770), (132, 1942080), (136, 1884960), (140, 1831104), (144, 1780240), (153, 1675520), (154, 1664640), (160, 1602216), (165, 1553664), (168, 1525920), (170, 1507968), (176, 1456560), (180, 1424192), (187, 1370880), (192, 1335180), (198, 1294720), (204, 1256640), (210, 1220736), (220, 1165248), (224, 1144440), (231, 1109760), (238, 1077120), (240, 1068144), (252, 1017280), (255, 1005312), (256, 1001385), (264, 971040), (272, 942480), (280, 915552), (288, 890120), (289, 887040), (306, 837760), (308, 832320), (315, 813824), (320, 801108), (330, 776832), (336, 762960), (340, 753984), (352, 728280), (357, 718080), (360, 712096), (374, 685440), (384, 667590), (385, 665856), (396, 647360), (408, 628320), (420, 610368), (440, 582624), (448, 572220), (462, 554880), (476, 538560), (480, 534072), (495, 517888), (504, 508640), (510, 502656), (528, 485520), (544, 471240), (560, 457776), (561, 456960), (576, 445060), (578, 443520), (595, 430848), (612, 418880), (616, 416160), (630, 406912), (640, 400554), (660, 388416), (672, 381480), (680, 376992), (693, 369920), (704, 364140), (714, 359040), (720, 356048), (748, 342720), (765, 335104), (768, 333795), (770, 332928), (792, 323680), (816, 314160), (840, 305184), (867, 295680), (880, 291312), (896, 286110), (924, 277440), (935, 274176), (952, 269280), (960, 267036), (990, 258944), (1008, 254320), (1020, 251328), (1056, 242760), (1071, 239360), (1088, 235620), (1120, 228888), (1122, 228480), (1152, 222530), (1155, 221952), (1156, 221760), (1190, 215424), (1224, 209440), (1232, 208080), (1260, 203456), (1280, 200277), (1309, 195840), (1320, 194208), (1344, 190740), (1360, 188496), (1386, 184960), (1408, 182070), (1428, 179520), (1440, 178024), (1445, 177408), (1496, 171360), (1530, 167552), (1540, 166464), (1584, 161840), (1632, 157080), (1680, 152592), (1683, 152320), (1734, 147840), (1760, 145656), (1785, 143616), (1792, 143055), (1848, 138720), (1870, 137088), (1904, 134640), (1920, 133518), (1980, 129472), (2016, 127160), (2023, 126720), (2040, 125664), (2112, 121380), (2142, 119680), (2176, 117810), (2240, 114444), (2244, 114240), (2304, 111265), (2310, 110976), (2312, 110880), (2380, 107712), (2448, 104720), (2464, 104040), (2520, 101728), (2601, 98560), (2618, 97920), (2640, 97104), (2688, 95370), (2720, 94248), (2772, 92480), (2805, 91392), (2816, 91035), (2856, 89760), (2880, 89012), (2890, 88704), (2992, 85680), (3060, 83776), (3080, 83232), (3168, 80920), (3179, 80640), (3264, 78540), (3360, 76296), (3366, 76160), (3465, 73984), (3468, 73920), (3520, 72828), (3570, 71808), (3696, 69360), (3740, 68544), (3808, 67320), (3840, 66759), (3927, 65280), (3960, 64736), (4032, 63580), (4046, 63360), (4080, 62832), (4224, 60690), (4284, 59840), (4335, 59136), (4352, 58905), (4480, 57222), (4488, 57120), (4620, 55488), (4624, 55440), (4760, 53856), (4896, 52360), (4928, 52020), (5040, 50864), (5202, 49280), (5236, 48960), (5280, 48552), (5355, 47872), (5376, 47685), (5440, 47124), (5544, 46240), (5610, 45696), (5712, 44880), (5760, 44506), (5780, 44352), (5984, 42840), (6069, 42240), (6120, 41888), (6160, 41616), (6336, 40460), (6358, 40320), (6528, 39270), (6545, 39168), (6720, 38148), (6732, 38080), (6930, 36992), (6936, 36960), (7040, 36414), (7140, 35904), (7392, 34680), (7480, 34272), (7616, 33660), (7854, 32640), (7920, 32368), (8064, 31790), (8092, 31680), (8160, 31416), (8415, 30464), (8448, 30345), (8568, 29920), (8670, 29568), (8960, 28611), (8976, 28560), (9240, 27744), (9248, 27720), (9520, 26928), (9537, 26880), (9792, 26180), (9856, 26010), (10080, 25432), (10115, 25344), (10404, 24640), (10472, 24480), (10560, 24276), (10710, 23936), (10880, 23562), (11088, 23120), (11220, 22848), (11424, 22440), (11520, 22253), (11560, 22176), (11781, 21760), (11968, 21420), (12138, 21120), (12240, 20944), (12320, 20808), (12672, 20230), (12716, 20160), (13005, 19712), (13056, 19635), (13090, 19584), (13440, 19074), (13464, 19040), (13860, 18496), (13872, 18480), (14080, 18207), (14280, 17952), (14784, 17340), (14960, 17136), (15232, 16830), (15708, 16320), (15840, 16184), (15895, 16128)]