The factors of the number 664,024,680 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 167683, 335366, 503049, 670732, 838415, 1006098, 1341464, 1509147, 1676830, 1844513, 2012196, 2515245, 3018294, 3353660, 3689026, 4024392, 5030490, 5533539, 6036588, 6707320, 7378052, 7545735, 9222565, 10060980, 11067078, 12073176, 14756104, 15091470, 16600617, 18445130, 20121960, 22134156, 27667695, 30182940, 33201234, 36890260, 44268312, 55335390, 60365880, 66402468, 73780520, 83003085, 110670780, 132804936, 166006170, 221341560, 332012340, 664024680.
If you add them up, you will get the total of 2,354,283,360.