80944839

素因数分解:

$3^4\times {\mathrm{641}}^1\times {\mathrm{1559}}^1$

素因数の和:2212

約数の個数: 20

約数和(自身を含む): 121183920

約数和(自身を除く): 40239081

約数列:

[1, 3, 9, 27, 81, 641, 1559, 1923, 4677, 5769, 14031, 17307, 42093, 51921, 126279, 999319, 2997957, 8993871, 26981613, 80944839]

約数ペア:

[(1, 80944839), (3, 26981613), (9, 8993871), (27, 2997957), (81, 999319), (641, 126279), (1559, 51921), (1923, 42093), (4677, 17307), (5769, 14031)]