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The sum of factors of 19600 is:...

The sum of factors of 19600 is:

A

54777

B

33667

C

5428

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Since 19600 = `2^4xx5^2xx7^2`
`therefore` Sim of all factors of 19600 = `((2^(4+1)-1))(5^(2+1)-1)(7^(2+1)-1)/(2-1)(5-1)(7-1) = (31xx124xx342)/(1xx4xx6) = 5477`
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QUANTUM CAT-NUMBER SYSTEM-QUESTION BANK
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  11. Find the number of co-prime numbers of 336.

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  12. Find the number of co-prime numbers of 49, which are composite numbers...

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  13. Find the sum of all the co-prime numbers of 10.

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  14. Find the sum of all the co-prime numbers of 336.

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