81478656

素因数分解:

$2^{10}\times 3^3\times 7^1\times {\mathrm{421}}^1$

素因数の和:457

約数の個数: 176

約数和(自身を含む): 276426880

約数和(自身を除く): 194948224

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 421, 432, 448, 504, 512, 576, 672, 756, 768, 842, 864, 896, 1008, 1024, 1152, 1263, 1344, 1512, 1536, 1684, 1728, 1792, 2016, 2304, 2526, 2688, 2947, 3024, 3072, 3368, 3456, 3584, 3789, 4032, 4608, 5052, 5376, 5894, 6048, 6736, 6912, 7168, 7578, 8064, 8841, 9216, 10104, 10752, 11367, 11788, 12096, 13472, 13824, 15156, 16128, 17682, 20208, 21504, 22734, 23576, 24192, 26523, 26944, 27648, 30312, 32256, 35364, 40416, 45468, 47152, 48384, 53046, 53888, 60624, 64512, 70728, 79569, 80832, 90936, 94304, 96768, 106092, 107776, 121248, 141456, 159138, 161664, 181872, 188608, 193536, 212184, 215552, 242496, 282912, 318276, 323328, 363744, 377216, 424368, 431104, 484992, 565824, 636552, 646656, 727488, 754432, 848736, 969984, 1131648, 1273104, 1293312, 1454976, 1508864, 1697472, 1939968, 2263296, 2546208, 2909952, 3017728, 3394944, 3879936, 4526592, 5092416, 5819904, 6789888, 9053184, 10184832, 11639808, 13579776, 20369664, 27159552, 40739328, 81478656]

約数ペア:

[(1, 81478656), (2, 40739328), (3, 27159552), (4, 20369664), (6, 13579776), (7, 11639808), (8, 10184832), (9, 9053184), (12, 6789888), (14, 5819904), (16, 5092416), (18, 4526592), (21, 3879936), (24, 3394944), (27, 3017728), (28, 2909952), (32, 2546208), (36, 2263296), (42, 1939968), (48, 1697472), (54, 1508864), (56, 1454976), (63, 1293312), (64, 1273104), (72, 1131648), (84, 969984), (96, 848736), (108, 754432), (112, 727488), (126, 646656), (128, 636552), (144, 565824), (168, 484992), (189, 431104), (192, 424368), (216, 377216), (224, 363744), (252, 323328), (256, 318276), (288, 282912), (336, 242496), (378, 215552), (384, 212184), (421, 193536), (432, 188608), (448, 181872), (504, 161664), (512, 159138), (576, 141456), (672, 121248), (756, 107776), (768, 106092), (842, 96768), (864, 94304), (896, 90936), (1008, 80832), (1024, 79569), (1152, 70728), (1263, 64512), (1344, 60624), (1512, 53888), (1536, 53046), (1684, 48384), (1728, 47152), (1792, 45468), (2016, 40416), (2304, 35364), (2526, 32256), (2688, 30312), (2947, 27648), (3024, 26944), (3072, 26523), (3368, 24192), (3456, 23576), (3584, 22734), (3789, 21504), (4032, 20208), (4608, 17682), (5052, 16128), (5376, 15156), (5894, 13824), (6048, 13472), (6736, 12096), (6912, 11788), (7168, 11367), (7578, 10752), (8064, 10104), (8841, 9216)]