19115457580

素因数分解:

$2^2\times 5^1\times {\mathrm{955772879}}^1$

素因数の和:955772888

約数の個数: 12

約数和(自身を含む): 40142460960

約数和(自身を除く): 21027003380

約数列:

[1, 2, 4, 5, 10, 20, 955772879, 1911545758, 3823091516, 4778864395, 9557728790, 19115457580]

約数ペア:

[(1, 19115457580), (2, 9557728790), (4, 4778864395), (5, 3823091516), (10, 1911545758), (20, 955772879)]