78720376

素因数分解:

$2^3\times 7^1\times {\mathrm{1405721}}^1$

素因数の和:1405734

約数の個数: 16

約数和(自身を含む): 168686640

約数和(自身を除く): 89966264

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1405721, 2811442, 5622884, 9840047, 11245768, 19680094, 39360188, 78720376]

約数ペア:

[(1, 78720376), (2, 39360188), (4, 19680094), (7, 11245768), (8, 9840047), (14, 5622884), (28, 2811442), (56, 1405721)]