The factors of the number 623,337,708 are: 1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 31, 34, 42, 51, 62, 68, 84, 93, 102, 119, 124, 186, 204, 217, 238, 357, 372, 434, 476, 527, 651, 714, 868, 1054, 1302, 1428, 1581, 2108, 2604, 3162, 3689, 6324, 7378, 11067, 14081, 14756, 22134, 28162, 42243, 44268, 56324, 84486, 98567, 168972, 197134, 239377, 295701, 394268, 436511, 478754, 591402, 718131, 873022, 957508, 1182804, 1309533, 1436262, 1675639, 1746044, 2619066, 2872524, 3055577, 3351278, 5026917, 5238132, 6111154, 6702556, 7420687, 9166731, 10053834, 12222308, 14841374, 18333462, 20107668, 22262061, 29682748, 36666924, 44524122, 51944809, 89048244, 103889618, 155834427, 207779236, 311668854, 623337708.
If you add them up, you will get the total of 1,816,915,968.