78681701

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 94802400

約数和(自身を除く): 16120699

約数列:

[1, 7, 43, 49, 107, 301, 349, 749, 2107, 2443, 4601, 5243, 15007, 17101, 32207, 37343, 105049, 225449, 261401, 735343, 1605749, 1829807, 11240243, 78681701]

約数ペア:

[(1, 78681701), (7, 11240243), (43, 1829807), (49, 1605749), (107, 735343), (301, 261401), (349, 225449), (749, 105049), (2107, 37343), (2443, 32207), (4601, 17101), (5243, 15007)]