A 4-multiperfect number 
. 36 sous-triples are known (30240, 32760, 2178540, 23569920,
...; OEIS A027687), and these are believed
to comprise all sous-triples.
Sous-Triple
See also
Multiperfect Number, Sous-DoubleExplore with Wolfram|Alpha
References
Sloane, N. J. A. Sequence A027687 in "The On-Line Encyclopedia of Integer Sequences."Referenced on Wolfram|Alpha
Sous-TripleCite this as:
Weisstein, Eric W. "Sous-Triple." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Sous-Triple.html