256308416

素因数分解:

$2^6\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6287}}^1$

素因数の和:6326

約数の個数: 84

約数和(自身を含む): 637263648

約数和(自身を除く): 380955232

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 448, 637, 728, 784, 832, 1274, 1456, 1568, 2548, 2912, 3136, 5096, 5824, 6287, 10192, 12574, 20384, 25148, 40768, 44009, 50296, 81731, 88018, 100592, 163462, 176036, 201184, 308063, 326924, 352072, 402368, 572117, 616126, 653848, 704144, 1144234, 1232252, 1307696, 1408288, 2288468, 2464504, 2615392, 2816576, 4004819, 4576936, 4929008, 5230784, 8009638, 9153872, 9858016, 16019276, 18307744, 19716032, 32038552, 36615488, 64077104, 128154208, 256308416]

約数ペア:

[(1, 256308416), (2, 128154208), (4, 64077104), (7, 36615488), (8, 32038552), (13, 19716032), (14, 18307744), (16, 16019276), (26, 9858016), (28, 9153872), (32, 8009638), (49, 5230784), (52, 4929008), (56, 4576936), (64, 4004819), (91, 2816576), (98, 2615392), (104, 2464504), (112, 2288468), (182, 1408288), (196, 1307696), (208, 1232252), (224, 1144234), (364, 704144), (392, 653848), (416, 616126), (448, 572117), (637, 402368), (728, 352072), (784, 326924), (832, 308063), (1274, 201184), (1456, 176036), (1568, 163462), (2548, 100592), (2912, 88018), (3136, 81731), (5096, 50296), (5824, 44009), (6287, 40768), (10192, 25148), (12574, 20384)]