PROCEDURE TO LIST ALL FACTORS OF A NUMBER

PERFECT NUMBERS If the sum of all the factors of a number is two xx the number then the number is called a perfect number.

Match List-I (Cities in U.S.A.) with List-II (Factors for which they known) and select the correct answer by using the codes given below the lists:

List all the factors of 81.

The sum of all factors of 600 is

The sum of all factors of 600 is

List all the factors of 27 and 52.

The reduction factor K of a tangent galvanometer is written on the instrument. The manual says that the current is obtained by multiplying this factor to tantheta . The procedure works well at Bhuwaneshwar. Will the procedure work if the instrument is taken to Nepal? If there is some error, can it be corrected by correcting the manual or the instrument will have to be taken back to the factory?

Sum of all factors of 248 is

Sum of all factors of 248 is

The sum of all the factors of 50 is