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Search: id:A046709
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| A046709 |
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Irrational unitary phi amicable number: two numbers which satisfy uphi(a)=uphi(b)=2*(a^2-b^2)^(1/2) where if x=Product p(i)^r(i) then uphi(x)=Product (p(i)^r(i)-1) (A047994). |
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| 25200, 982800, 1562400, 60933600, 6854400, 267321600, 798939187200, 31158628300800, 450964684800, 17587622707200, 118216784402841600, 459775632811622400, 1936908127288531353600, 75539416964252722790400
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