The factors of the number 667,746,400 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 37, 40, 50, 68, 74, 80, 85, 100, 136, 148, 160, 170, 185, 200, 272, 296, 340, 370, 400, 425, 544, 592, 629, 680, 740, 800, 850, 925, 1184, 1258, 1327, 1360, 1480, 1700, 1850, 2516, 2654, 2720, 2960, 3145, 3400, 3700, 5032, 5308, 5920, 6290, 6635, 6800, 7400, 10064, 10616, 12580, 13270, 13600, 14800, 15725, 20128, 21232, 22559, 25160, 26540, 29600, 31450, 33175, 42464, 45118, 49099, 50320, 53080, 62900, 66350, 90236, 98198, 100640, 106160, 112795, 125800, 132700, 180472, 196396, 212320, 225590, 245495, 251600, 265400, 360944, 392792, 451180, 490990, 503200, 530800, 563975, 721888, 785584, 834683, 902360, 981980, 1061600, 1127950, 1227475, 1571168, 1669366, 1804720, 1963960, 2255900, 2454950, 3338732, 3609440, 3927920, 4173415, 4511800, 4909900, 6677464, 7855840, 8346830, 9023600, 9819800, 13354928, 16693660, 18047200, 19639600, 20867075, 26709856, 33387320, 39279200, 41734150, 66774640, 83468300, 133549280, 166936600, 333873200, 667746400.
If you add them up, you will get the total of 1,774,011,456.