81287612

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{126223}}^1$

素因数の和:126257

約数の個数: 24

約数和(自身を含む): 169645056

約数和(自身を除く): 88357444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 126223, 252446, 504892, 883561, 1767122, 2903129, 3534244, 5806258, 11612516, 20321903, 40643806, 81287612]

約数ペア:

[(1, 81287612), (2, 40643806), (4, 20321903), (7, 11612516), (14, 5806258), (23, 3534244), (28, 2903129), (46, 1767122), (92, 883561), (161, 504892), (322, 252446), (644, 126223)]