The factors of the number 424,431,504 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 263, 336, 504, 526, 789, 1008, 1052, 1578, 1601, 1841, 2104, 2367, 3156, 3202, 3682, 4208, 4734, 4803, 5523, 6312, 6404, 7364, 9468, 9606, 11046, 11207, 12624, 12808, 14409, 14728, 16569, 18936, 19212, 22092, 22414, 25616, 28818, 29456, 33138, 33621, 37872, 38424, 44184, 44828, 57636, 66276, 67242, 76848, 88368, 89656, 100863, 115272, 132552, 134484, 179312, 201726, 230544, 265104, 268968, 403452, 421063, 537936, 806904, 842126, 1263189, 1613808, 1684252, 2526378, 2947441, 3368504, 3789567, 5052756, 5894882, 6737008, 7579134, 8842323, 10105512, 11789764, 15158268, 17684646, 20211024, 23579528, 26526969, 30316536, 35369292, 47159056, 53053938, 60633072, 70738584, 106107876, 141477168, 212215752, 424431504.
If you add them up, you will get the total of 1,363,519,872.