256426560

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{761}}^1$

素因数の和:803

約数の個数: 280

約数和(自身を含む): 983610936

約数和(自身を除く): 727184376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 192, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 324, 351, 360, 390, 405, 416, 432, 468, 480, 520, 540, 576, 585, 624, 648, 702, 720, 761, 780, 810, 832, 864, 936, 960, 1040, 1053, 1080, 1170, 1248, 1296, 1404, 1440, 1522, 1560, 1620, 1728, 1755, 1872, 2080, 2106, 2160, 2283, 2340, 2496, 2592, 2808, 2880, 3044, 3120, 3240, 3510, 3744, 3805, 4160, 4212, 4320, 4566, 4680, 5184, 5265, 5616, 6088, 6240, 6480, 6849, 7020, 7488, 7610, 8424, 8640, 9132, 9360, 9893, 10530, 11232, 11415, 12176, 12480, 12960, 13698, 14040, 15220, 16848, 18264, 18720, 19786, 20547, 21060, 22464, 22830, 24352, 25920, 27396, 28080, 29679, 30440, 33696, 34245, 36528, 37440, 39572, 41094, 42120, 45660, 48704, 49465, 54792, 56160, 59358, 60880, 61641, 67392, 68490, 73056, 79144, 82188, 84240, 89037, 91320, 98930, 102735, 109584, 112320, 118716, 121760, 123282, 136980, 146112, 148395, 158288, 164376, 168480, 178074, 182640, 197860, 205470, 219168, 237432, 243520, 246564, 267111, 273960, 296790, 308205, 316576, 328752, 336960, 356148, 365280, 395720, 410940, 438336, 445185, 474864, 493128, 534222, 547920, 593580, 616410, 633152, 657504, 712296, 730560, 791440, 801333, 821880, 890370, 949728, 986256, 1068444, 1095840, 1187160, 1232820, 1315008, 1335555, 1424592, 1582880, 1602666, 1643760, 1780740, 1899456, 1972512, 2136888, 2191680, 2374320, 2465640, 2671110, 2849184, 3165760, 3205332, 3287520, 3561480, 3945024, 4006665, 4273776, 4748640, 4931280, 5342220, 5698368, 6410664, 6575040, 7122960, 8013330, 8547552, 9497280, 9862560, 10684440, 12821328, 14245920, 16026660, 17095104, 19725120, 21368880, 25642656, 28491840, 32053320, 42737760, 51285312, 64106640, 85475520, 128213280, 256426560]

約数ペア:

[(1, 256426560), (2, 128213280), (3, 85475520), (4, 64106640), (5, 51285312), (6, 42737760), (8, 32053320), (9, 28491840), (10, 25642656), (12, 21368880), (13, 19725120), (15, 17095104), (16, 16026660), (18, 14245920), (20, 12821328), (24, 10684440), (26, 9862560), (27, 9497280), (30, 8547552), (32, 8013330), (36, 7122960), (39, 6575040), (40, 6410664), (45, 5698368), (48, 5342220), (52, 4931280), (54, 4748640), (60, 4273776), (64, 4006665), (65, 3945024), (72, 3561480), (78, 3287520), (80, 3205332), (81, 3165760), (90, 2849184), (96, 2671110), (104, 2465640), (108, 2374320), (117, 2191680), (120, 2136888), (130, 1972512), (135, 1899456), (144, 1780740), (156, 1643760), (160, 1602666), (162, 1582880), (180, 1424592), (192, 1335555), (195, 1315008), (208, 1232820), (216, 1187160), (234, 1095840), (240, 1068444), (260, 986256), (270, 949728), (288, 890370), (312, 821880), (320, 801333), (324, 791440), (351, 730560), (360, 712296), (390, 657504), (405, 633152), (416, 616410), (432, 593580), (468, 547920), (480, 534222), (520, 493128), (540, 474864), (576, 445185), (585, 438336), (624, 410940), (648, 395720), (702, 365280), (720, 356148), (761, 336960), (780, 328752), (810, 316576), (832, 308205), (864, 296790), (936, 273960), (960, 267111), (1040, 246564), (1053, 243520), (1080, 237432), (1170, 219168), (1248, 205470), (1296, 197860), (1404, 182640), (1440, 178074), (1522, 168480), (1560, 164376), (1620, 158288), (1728, 148395), (1755, 146112), (1872, 136980), (2080, 123282), (2106, 121760), (2160, 118716), (2283, 112320), (2340, 109584), (2496, 102735), (2592, 98930), (2808, 91320), (2880, 89037), (3044, 84240), (3120, 82188), (3240, 79144), (3510, 73056), (3744, 68490), (3805, 67392), (4160, 61641), (4212, 60880), (4320, 59358), (4566, 56160), (4680, 54792), (5184, 49465), (5265, 48704), (5616, 45660), (6088, 42120), (6240, 41094), (6480, 39572), (6849, 37440), (7020, 36528), (7488, 34245), (7610, 33696), (8424, 30440), (8640, 29679), (9132, 28080), (9360, 27396), (9893, 25920), (10530, 24352), (11232, 22830), (11415, 22464), (12176, 21060), (12480, 20547), (12960, 19786), (13698, 18720), (14040, 18264), (15220, 16848)]