256386816

素因数分解:

$2^8\times 3^3\times 7^2\times {\mathrm{757}}^1$

素因数の和:796

約数の個数: 216

約数和(自身を含む): 883130640

約数和(自身を除く): 626743824

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 64, 72, 84, 96, 98, 108, 112, 126, 128, 144, 147, 168, 189, 192, 196, 216, 224, 252, 256, 288, 294, 336, 378, 384, 392, 432, 441, 448, 504, 576, 588, 672, 756, 757, 768, 784, 864, 882, 896, 1008, 1152, 1176, 1323, 1344, 1512, 1514, 1568, 1728, 1764, 1792, 2016, 2271, 2304, 2352, 2646, 2688, 3024, 3028, 3136, 3456, 3528, 4032, 4542, 4704, 5292, 5299, 5376, 6048, 6056, 6272, 6813, 6912, 7056, 8064, 9084, 9408, 10584, 10598, 12096, 12112, 12544, 13626, 14112, 15897, 16128, 18168, 18816, 20439, 21168, 21196, 24192, 24224, 27252, 28224, 31794, 36336, 37093, 37632, 40878, 42336, 42392, 47691, 48384, 48448, 54504, 56448, 63588, 72672, 74186, 81756, 84672, 84784, 95382, 96896, 109008, 111279, 112896, 127176, 143073, 145344, 148372, 163512, 169344, 169568, 190764, 193792, 218016, 222558, 254352, 286146, 290688, 296744, 327024, 333837, 338688, 339136, 381528, 436032, 445116, 508704, 572292, 581376, 593488, 654048, 667674, 678272, 763056, 872064, 890232, 1001511, 1017408, 1144584, 1186976, 1308096, 1335348, 1356544, 1526112, 1744128, 1780464, 2003022, 2034816, 2289168, 2373952, 2616192, 2670696, 3052224, 3560928, 4006044, 4069632, 4578336, 4747904, 5232384, 5341392, 6104448, 7121856, 8012088, 9156672, 9495808, 10682784, 12208896, 14243712, 16024176, 18313344, 21365568, 28487424, 32048352, 36626688, 42731136, 64096704, 85462272, 128193408, 256386816]

約数ペア:

[(1, 256386816), (2, 128193408), (3, 85462272), (4, 64096704), (6, 42731136), (7, 36626688), (8, 32048352), (9, 28487424), (12, 21365568), (14, 18313344), (16, 16024176), (18, 14243712), (21, 12208896), (24, 10682784), (27, 9495808), (28, 9156672), (32, 8012088), (36, 7121856), (42, 6104448), (48, 5341392), (49, 5232384), (54, 4747904), (56, 4578336), (63, 4069632), (64, 4006044), (72, 3560928), (84, 3052224), (96, 2670696), (98, 2616192), (108, 2373952), (112, 2289168), (126, 2034816), (128, 2003022), (144, 1780464), (147, 1744128), (168, 1526112), (189, 1356544), (192, 1335348), (196, 1308096), (216, 1186976), (224, 1144584), (252, 1017408), (256, 1001511), (288, 890232), (294, 872064), (336, 763056), (378, 678272), (384, 667674), (392, 654048), (432, 593488), (441, 581376), (448, 572292), (504, 508704), (576, 445116), (588, 436032), (672, 381528), (756, 339136), (757, 338688), (768, 333837), (784, 327024), (864, 296744), (882, 290688), (896, 286146), (1008, 254352), (1152, 222558), (1176, 218016), (1323, 193792), (1344, 190764), (1512, 169568), (1514, 169344), (1568, 163512), (1728, 148372), (1764, 145344), (1792, 143073), (2016, 127176), (2271, 112896), (2304, 111279), (2352, 109008), (2646, 96896), (2688, 95382), (3024, 84784), (3028, 84672), (3136, 81756), (3456, 74186), (3528, 72672), (4032, 63588), (4542, 56448), (4704, 54504), (5292, 48448), (5299, 48384), (5376, 47691), (6048, 42392), (6056, 42336), (6272, 40878), (6813, 37632), (6912, 37093), (7056, 36336), (8064, 31794), (9084, 28224), (9408, 27252), (10584, 24224), (10598, 24192), (12096, 21196), (12112, 21168), (12544, 20439), (13626, 18816), (14112, 18168), (15897, 16128)]