please show codes in java

thanks

3. A Perfect Number is a positive integer, n>0, which possesses the following prop- erty: the sum of all positive divisors which are less than n, is equal to n. For example: 1+2+3=6, 1+2+4+7+14 = 28, 1+2+4+8+16+31 +62+124+248 = 496 Write a program which locates and prints any perfect numbers between 1 and 40,000, 000