78165729

素因数分解:

$3^4\times {\mathrm{431}}^1\times {\mathrm{2239}}^1$

素因数の和:2682

約数の個数: 20

約数和(自身を含む): 117089280

約数和(自身を除く): 38923551

約数列:

[1, 3, 9, 27, 81, 431, 1293, 2239, 3879, 6717, 11637, 20151, 34911, 60453, 181359, 965009, 2895027, 8685081, 26055243, 78165729]

約数ペア:

[(1, 78165729), (3, 26055243), (9, 8685081), (27, 2895027), (81, 965009), (431, 181359), (1293, 60453), (2239, 34911), (3879, 20151), (6717, 11637)]