The factors of the number 877,500 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 90, 100, 108, 117, 125, 130, 135, 150, 156, 180, 195, 225, 234, 250, 260, 270, 300, 325, 351, 375, 390, 450, 468, 500, 540, 585, 625, 650, 675, 702, 750, 780, 900, 975, 1125, 1170, 1250, 1300, 1350, 1404, 1500, 1625, 1755, 1875, 1950, 2250, 2340, 2500, 2700, 2925, 3250, 3375, 3510, 3750, 3900, 4500, 4875, 5625, 5850, 6500, 6750, 7020, 7500, 8125, 8775, 9750, 11250, 11700, 13500, 14625, 16250, 16875, 17550, 19500, 22500, 24375, 29250, 32500, 33750, 35100, 43875, 48750, 58500, 67500, 73125, 87750, 97500, 146250, 175500, 219375, 292500, 438750, 877500.
If you add them up, you will get the total of 3,061,520.