Japanese coins, a plastic bag

2001

photo by Takagi Shigeki

cf. 1184 and 1210 are the amicable pair which Paganini found in 1866.

(Two numbers are called amicable if each equals to the sum of the divisors of the other.)

Divisors of 1184: 1 + 2 + 4 + 8 + 16 + 32 + 37 + 74 + 148 + 296 + 592 = 1210

Divisors of 1210: 1 + 2 + 5 + 10 + 11 + 22 + 55 + 110 + 121 + 242 + 605 = 1184