12781232

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{4139}}^1$

素因数の和:4340

約数の個数: 20

約数和(自身を含む): 24897960

約数和(自身を除く): 12116728

約数列:

[1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 4139, 8278, 16556, 33112, 66224, 798827, 1597654, 3195308, 6390616, 12781232]

約数ペア:

[(1, 12781232), (2, 6390616), (4, 3195308), (8, 1597654), (16, 798827), (193, 66224), (386, 33112), (772, 16556), (1544, 8278), (3088, 4139)]