131678384

素因数分解:

$2^4\times {\mathrm{43}}^2\times {\mathrm{4451}}^1$

素因数の和:4545

約数の個数: 30

約数和(自身を含む): 261256716

約数和(自身を除く): 129578332

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1849, 3698, 4451, 7396, 8902, 14792, 17804, 29584, 35608, 71216, 191393, 382786, 765572, 1531144, 3062288, 8229899, 16459798, 32919596, 65839192, 131678384]

約数ペア:

[(1, 131678384), (2, 65839192), (4, 32919596), (8, 16459798), (16, 8229899), (43, 3062288), (86, 1531144), (172, 765572), (344, 382786), (688, 191393), (1849, 71216), (3698, 35608), (4451, 29584), (7396, 17804), (8902, 14792)]