81581812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{457}}^1\times {\mathrm{3433}}^1$

素因数の和:3907

約数の個数: 24

約数和(自身を含む): 154131656

約数和(自身を除く): 72549844

約数列:

[1, 2, 4, 13, 26, 52, 457, 914, 1828, 3433, 5941, 6866, 11882, 13732, 23764, 44629, 89258, 178516, 1568881, 3137762, 6275524, 20395453, 40790906, 81581812]

約数ペア:

[(1, 81581812), (2, 40790906), (4, 20395453), (13, 6275524), (26, 3137762), (52, 1568881), (457, 178516), (914, 89258), (1828, 44629), (3433, 23764), (5941, 13732), (6866, 11882)]