Question

frist answer will be in brainliest​

Answer 1

Answer:

1000 is it's standard form.

Step-by-step explanation:

product of divisors - 20×42=840

sum of divisors - 20+42=62

Answer 2

Answer:

The number of divisors is 1080=2^3\times 3^3\times 5^11080=23×33×51

The sum of divisors is 32.

Step-by-step explanation:

Given : Number 1080.

To find : Write the standard form and find the number of divisors and sum of divisors ?

Solution :

Factories the number 1080 ,

1080=2\times 2\times 2\times 3\times 3\times 3\times 51080=2×2×2×3×3×3×5

1080=2^3\times 3^3\times 5^11080=23×33×51

The number of divisors is 1080=2^3\times 3^3\times 5^11080=23×33×51

We should add the powers by 1 ,

i.e. s=(1+1)(3+1)(3+1)s=(1+1)(3+1)(3+1)

s=(2)(4)(4)s=(2)(4)(4)

s=32s=32