81914368

素因数分解:

$2^9\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1308

約数の個数: 40

約数和(自身を含む): 164989440

約数和(自身を除く): 83075072

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 139, 256, 278, 512, 556, 1112, 1151, 2224, 2302, 4448, 4604, 8896, 9208, 17792, 18416, 35584, 36832, 71168, 73664, 147328, 159989, 294656, 319978, 589312, 639956, 1279912, 2559824, 5119648, 10239296, 20478592, 40957184, 81914368]

約数ペア:

[(1, 81914368), (2, 40957184), (4, 20478592), (8, 10239296), (16, 5119648), (32, 2559824), (64, 1279912), (128, 639956), (139, 589312), (256, 319978), (278, 294656), (512, 159989), (556, 147328), (1112, 73664), (1151, 71168), (2224, 36832), (2302, 35584), (4448, 18416), (4604, 17792), (8896, 9208)]