66688012

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{387721}}^1$

素因数の和:387768

約数の個数: 12

約数和(自身を含む): 119418376

約数和(自身を除く): 52730364

約数列:

[1, 2, 4, 43, 86, 172, 387721, 775442, 1550884, 16672003, 33344006, 66688012]

約数ペア:

[(1, 66688012), (2, 33344006), (4, 16672003), (43, 1550884), (86, 775442), (172, 387721)]