81937408

素因数分解:

$2^{10}\times 7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 132

約数和(自身を含む): 201621312

約数和(自身を除く): 119683904

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 49, 56, 64, 71, 92, 98, 112, 128, 142, 161, 184, 196, 224, 256, 284, 322, 368, 392, 448, 497, 512, 568, 644, 736, 784, 896, 994, 1024, 1127, 1136, 1288, 1472, 1568, 1633, 1792, 1988, 2254, 2272, 2576, 2944, 3136, 3266, 3479, 3584, 3976, 4508, 4544, 5152, 5888, 6272, 6532, 6958, 7168, 7952, 9016, 9088, 10304, 11431, 11776, 12544, 13064, 13916, 15904, 18032, 18176, 20608, 22862, 23552, 25088, 26128, 27832, 31808, 36064, 36352, 41216, 45724, 50176, 52256, 55664, 63616, 72128, 72704, 80017, 82432, 91448, 104512, 111328, 127232, 144256, 160034, 164864, 182896, 209024, 222656, 254464, 288512, 320068, 365792, 418048, 445312, 508928, 577024, 640136, 731584, 836096, 890624, 1154048, 1280272, 1463168, 1672192, 1781248, 2560544, 2926336, 3562496, 5121088, 5852672, 10242176, 11705344, 20484352, 40968704, 81937408]

約数ペア:

[(1, 81937408), (2, 40968704), (4, 20484352), (7, 11705344), (8, 10242176), (14, 5852672), (16, 5121088), (23, 3562496), (28, 2926336), (32, 2560544), (46, 1781248), (49, 1672192), (56, 1463168), (64, 1280272), (71, 1154048), (92, 890624), (98, 836096), (112, 731584), (128, 640136), (142, 577024), (161, 508928), (184, 445312), (196, 418048), (224, 365792), (256, 320068), (284, 288512), (322, 254464), (368, 222656), (392, 209024), (448, 182896), (497, 164864), (512, 160034), (568, 144256), (644, 127232), (736, 111328), (784, 104512), (896, 91448), (994, 82432), (1024, 80017), (1127, 72704), (1136, 72128), (1288, 63616), (1472, 55664), (1568, 52256), (1633, 50176), (1792, 45724), (1988, 41216), (2254, 36352), (2272, 36064), (2576, 31808), (2944, 27832), (3136, 26128), (3266, 25088), (3479, 23552), (3584, 22862), (3976, 20608), (4508, 18176), (4544, 18032), (5152, 15904), (5888, 13916), (6272, 13064), (6532, 12544), (6958, 11776), (7168, 11431), (7952, 10304), (9016, 9088)]