goals

If n = 10800,

(a) Find total number of divisor of n.

(b) The number of even divisor.

(c) Find the number of divisor of the form 4m + 2.

(d) Find the number of divisor which are multiple of 15.

(a) Find total number of divisor of n.

(b) The number of even divisor.

(c) Find the number of divisor of the form 4m + 2.

(d) Find the number of divisor which are multiple of 15.

In the formula, $$f=\frac{C}{L}$$, if $$C = 3 \times 10^{10}$$ and $$L = 6 \times 10^{-5},\, f =$$

The least number which when divided by $$5, 6, 7$$ and $$8$$ leaves a remainder $$3$$ is