20798720104

素因数分解:

$2^3\times {\mathrm{257}}^1\times {\mathrm{10116109}}^1$

素因数の和:10116372

約数の個数: 16

約数和(自身を含む): 39149345700

約数和(自身を除く): 18350625596

約数列:

[1, 2, 4, 8, 257, 514, 1028, 2056, 10116109, 20232218, 40464436, 80928872, 2599840013, 5199680026, 10399360052, 20798720104]

約数ペア:

[(1, 20798720104), (2, 10399360052), (4, 5199680026), (8, 2599840013), (257, 80928872), (514, 40464436), (1028, 20232218), (2056, 10116109)]