80402787

素因数分解:

$3^4\times {\mathrm{191}}^1\times {\mathrm{5197}}^1$

素因数の和:5400

約数の個数: 20

約数和(自身を含む): 120759936

約数和(自身を除く): 40357149

約数列:

[1, 3, 9, 27, 81, 191, 573, 1719, 5157, 5197, 15471, 15591, 46773, 140319, 420957, 992627, 2977881, 8933643, 26800929, 80402787]

約数ペア:

[(1, 80402787), (3, 26800929), (9, 8933643), (27, 2977881), (81, 992627), (191, 420957), (573, 140319), (1719, 46773), (5157, 15591), (5197, 15471)]