78840018

素因数分解:

$2^1\times 3^2\times {\mathrm{4380001}}^1$

素因数の和:4380009

約数の個数: 12

約数和(自身を含む): 170820078

約数和(自身を除く): 91980060

約数列:

[1, 2, 3, 6, 9, 18, 4380001, 8760002, 13140003, 26280006, 39420009, 78840018]

約数ペア:

[(1, 78840018), (2, 39420009), (3, 26280006), (6, 13140003), (9, 8760002), (18, 4380001)]