The factors of the number 833,333,475 are: 1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 79, 93, 155, 195, 237, 325, 349, 395, 403, 465, 775, 975, 1027, 1047, 1185, 1209, 1745, 1975, 2015, 2325, 2449, 3081, 4537, 5135, 5235, 5925, 6045, 7347, 8725, 10075, 10819, 12245, 13611, 15405, 22685, 25675, 26175, 27571, 30225, 31837, 32457, 36735, 54095, 61225, 68055, 77025, 82713, 95511, 113425, 137855, 140647, 159185, 162285, 183675, 270475, 340275, 358423, 413565, 421941, 477555, 689275, 703235, 795925, 811425, 854701, 1075269, 1792115, 2067825, 2109705, 2387775, 2564103, 3516175, 4273505, 5376345, 8960575, 10548525, 11111113, 12820515, 21367525, 26881725, 33333339, 55555565, 64102575, 166666695, 277777825, 833333475.
If you add them up, you will get the total of 1,555,456,000.