Problem 44748. Amicable numbers

Created by cdeliu

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Solution Stats

114 Solutions
42 Solvers

Last Solution submitted on Dec 02, 2021

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

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Kristopher Powers on 23 Oct 2018

use of divisors is not allowed.

cdeliu on 24 Oct 2018

I think it's because divisors is part of a toolbox, I did not set it up not to allow it.

Kristopher Powers on 24 Oct 2018

@cdeliu I have solved another problem in Community and I still am unable to see the best solution. Could you help to give advice on this.

cdeliu on 24 Oct 2018

If divisors function is not allowed, you should somehow generate these divisors. The best solution uses the mod function.

Solution Comments

Solution 1659624

1 Comment

1 Comment

Kristopher Powers on 25 Oct 2018

I performed speed analyses on this and Solution 1659562 is faster by leaps and bounds if you can see this solution your doing good. I performed this as a hack as I was unable to see the real solutions even after solving others in the community.

Solution 1657032

1 Comment

1 Comment

Kristopher Powers on 25 Oct 2018

Very impressive.

Problem Recent Solvers42

Problem Tags

divisors number theory

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Problem 44748. Amicable numbers

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Problem 44748. Amicable numbers

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Last 200 Solutions

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Problem Recent Solvers42

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