12640208

素因数分解:

$2^4\times 7^1\times {\mathrm{112859}}^1$

素因数の和:112874

約数の個数: 20

約数和(自身を含む): 27989280

約数和(自身を除く): 15349072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 112859, 225718, 451436, 790013, 902872, 1580026, 1805744, 3160052, 6320104, 12640208]

約数ペア:

[(1, 12640208), (2, 6320104), (4, 3160052), (7, 1805744), (8, 1580026), (14, 902872), (16, 790013), (28, 451436), (56, 225718), (112, 112859)]