Two wrongs make a right

Talking of adders, I have always enjoyed sums like this one

+ WRONG

    WRONG

     RIGHT

     =====

where you have to substitute distinct digits for the letters so that the arithmetic is correct. As in this case, the digits are usually specified to be non-zero.

I have been trying to devise some puzzles involving either the capital Greek letter, or the word, 'sigma'. In the spirit of the above sum, I need solutions for this multiplication:

HELP x ME = SIGMA.

I have found one but suspect there are more -- all suggestions gratefully received.