144
********** = 2 × 3 × 3 × 7 × 11 × 11 × 17 × 31 × 31 × 31 Total number is calculated from the powers of odd factors by adding one rule: 3^2*7^1*11^2*17^1*31^3 (2+1)*(1+1)*(2+1)*(1+1)*(3+1)=3*2*3*2*4=144
