The factors of the number 1,138,500 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 25, 30, 33, 36, 44, 45, 46, 50, 55, 60, 66, 69, 75, 90, 92, 99, 100, 110, 115, 125, 132, 138, 150, 165, 180, 198, 207, 220, 225, 230, 250, 253, 275, 276, 300, 330, 345, 375, 396, 414, 450, 460, 495, 500, 506, 550, 575, 660, 690, 750, 759, 825, 828, 900, 990, 1012, 1035, 1100, 1125, 1150, 1265, 1375, 1380, 1500, 1518, 1650, 1725, 1980, 2070, 2250, 2277, 2300, 2475, 2530, 2750, 2875, 3036, 3300, 3450, 3795, 4125, 4140, 4500, 4554, 4950, 5060, 5175, 5500, 5750, 6325, 6900, 7590, 8250, 8625, 9108, 9900, 10350, 11385, 11500, 12375, 12650, 15180, 16500, 17250, 18975, 20700, 22770, 24750, 25300, 25875, 31625, 34500, 37950, 45540, 49500, 51750, 56925, 63250, 75900, 94875, 103500, 113850, 126500, 189750, 227700, 284625, 379500, 569250, 1138500.
If you add them up, you will get the total of 4,088,448.