The factors of the number 206,440,640 are: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 644, 736, 805, 920, 1120, 1288, 1472, 1610, 1840, 2240, 2576, 3220, 3680, 4007, 5152, 6440, 7360, 8014, 10304, 12880, 16028, 20035, 25760, 28049, 32056, 40070, 51520, 56098, 64112, 80140, 92161, 112196, 128224, 140245, 160280, 184322, 224392, 256448, 280490, 320560, 368644, 448784, 460805, 560980, 641120, 645127, 737288, 897568, 921610, 1121960, 1282240, 1290254, 1474576, 1795136, 1843220, 2243920, 2580508, 2949152, 3225635, 3686440, 4487840, 5161016, 5898304, 6451270, 7372880, 8975680, 10322032, 12902540, 14745760, 20644064, 25805080, 29491520, 41288128, 51610160, 103220320, 206440640.
If you add them up, you will get the total of 206,441,019. Now subtract 206,440,640 to get 379,945,792