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@(v)mod~mod(sqrt(sum(divisors(v).^2)),1)==0
Unfortunately, it doesn't work on Octave (on tio) so no tio link.
Note As @LuisMendo stated, divisors() belongs to Symbolic Toolbox.
divisors()
@(v)mod(sqrt(sum(divisors(v).^2)),1)==0
Unfortunately, it doesn't work on Octave so no tio link.
@(v)~mod(sqrt(sum(divisors(v).^2)),1)
