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Omni-MATH / Find all functions f:N→N such that the following conditions are true for every pair of positive integers (x,y): (i): x and f(x) have the same number of positive divisors. (ii): If … · Discussion

Discussing Find all functions f:N→N such that the following conditions are true for every pair of positive integers (x,y): (i): x and f(x) have the same number of positive divisors. (ii): If … · Omni-MATH

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