81297664

素因数分解:

$2^8\times 7^2\times {\mathrm{6481}}^1$

素因数の和:6511

約数の個数: 54

約数和(自身を含む): 188801214

約数和(自身を除く): 107503550

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1792, 3136, 6272, 6481, 12544, 12962, 25924, 45367, 51848, 90734, 103696, 181468, 207392, 317569, 362936, 414784, 635138, 725872, 829568, 1270276, 1451744, 1659136, 2540552, 2903488, 5081104, 5806976, 10162208, 11613952, 20324416, 40648832, 81297664]

約数ペア:

[(1, 81297664), (2, 40648832), (4, 20324416), (7, 11613952), (8, 10162208), (14, 5806976), (16, 5081104), (28, 2903488), (32, 2540552), (49, 1659136), (56, 1451744), (64, 1270276), (98, 829568), (112, 725872), (128, 635138), (196, 414784), (224, 362936), (256, 317569), (392, 207392), (448, 181468), (784, 103696), (896, 90734), (1568, 51848), (1792, 45367), (3136, 25924), (6272, 12962), (6481, 12544)]