20869870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1061}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 43125696

約数和(自身を除く): 22255826

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 281, 562, 1061, 1405, 1967, 2122, 2810, 3934, 5305, 7427, 9835, 10610, 14854, 19670, 37135, 74270, 298141, 596282, 1490705, 2086987, 2981410, 4173974, 10434935, 20869870]

約数ペア:

[(1, 20869870), (2, 10434935), (5, 4173974), (7, 2981410), (10, 2086987), (14, 1490705), (35, 596282), (70, 298141), (281, 74270), (562, 37135), (1061, 19670), (1405, 14854), (1967, 10610), (2122, 9835), (2810, 7427), (3934, 5305)]