The factors of the number 8,213,400 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 25, 26, 27, 30, 36, 39, 40, 45, 50, 52, 54, 60, 65, 72, 75, 78, 81, 90, 100, 104, 108, 117, 120, 130, 135, 150, 156, 162, 169, 180, 195, 200, 216, 225, 234, 243, 260, 270, 300, 312, 324, 325, 338, 351, 360, 390, 405, 450, 468, 486, 507, 520, 540, 585, 600, 648, 650, 675, 676, 702, 780, 810, 845, 900, 936, 972, 975, 1014, 1053, 1080, 1170, 1215, 1300, 1350, 1352, 1404, 1521, 1560, 1620, 1690, 1755, 1800, 1944, 1950, 2025, 2028, 2106, 2340, 2430, 2535, 2600, 2700, 2808, 2925, 3042, 3159, 3240, 3380, 3510, 3900, 4050, 4056, 4212, 4225, 4563, 4680, 4860, 5070, 5265, 5400, 5850, 6075, 6084, 6318, 6760, 7020, 7605, 7800, 8100, 8424, 8450, 8775, 9126, 9720, 10140, 10530, 11700, 12150, 12168, 12636, 12675, 13689, 14040, 15210, 15795, 16200, 16900, 17550, 18252, 20280, 21060, 22815, 23400, 24300, 25272, 25350, 26325, 27378, 30420, 31590, 33800, 35100, 36504, 38025, 41067, 42120, 45630, 48600, 50700, 52650, 54756, 60840, 63180, 68445, 70200, 76050, 78975, 82134, 91260, 101400, 105300, 109512, 114075, 126360, 136890, 152100, 157950, 164268, 182520, 205335, 210600, 228150, 273780, 304200, 315900, 328536, 342225, 410670, 456300, 547560, 631800, 684450, 821340, 912600, 1026675, 1368900, 1642680, 2053350, 2737800, 4106700, 8213400.
If you add them up, you will get the total of 30,974,580.