81120256

素因数分解:

$2^{10}\times 7^1\times {\mathrm{11317}}^1$

素因数の和:11344

約数の個数: 44

約数和(自身を含む): 185343568

約数和(自身を除く): 104223312

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 3584, 7168, 11317, 22634, 45268, 79219, 90536, 158438, 181072, 316876, 362144, 633752, 724288, 1267504, 1448576, 2535008, 2897152, 5070016, 5794304, 10140032, 11588608, 20280064, 40560128, 81120256]

約数ペア:

[(1, 81120256), (2, 40560128), (4, 20280064), (7, 11588608), (8, 10140032), (14, 5794304), (16, 5070016), (28, 2897152), (32, 2535008), (56, 1448576), (64, 1267504), (112, 724288), (128, 633752), (224, 362144), (256, 316876), (448, 181072), (512, 158438), (896, 90536), (1024, 79219), (1792, 45268), (3584, 22634), (7168, 11317)]