The factors of the number 51,020,400 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 34, 40, 41, 48, 50, 51, 60, 61, 68, 75, 80, 82, 85, 100, 102, 120, 122, 123, 136, 150, 164, 170, 183, 200, 204, 205, 240, 244, 246, 255, 272, 300, 305, 328, 340, 366, 400, 408, 410, 425, 488, 492, 510, 600, 610, 615, 656, 680, 697, 732, 816, 820, 850, 915, 976, 984, 1020, 1025, 1037, 1200, 1220, 1230, 1275, 1360, 1394, 1464, 1525, 1640, 1700, 1830, 1968, 2040, 2050, 2074, 2091, 2440, 2460, 2501, 2550, 2788, 2928, 3050, 3075, 3111, 3280, 3400, 3485, 3660, 4080, 4100, 4148, 4182, 4575, 4880, 4920, 5002, 5100, 5185, 5576, 6100, 6150, 6222, 6800, 6970, 7320, 7503, 8200, 8296, 8364, 9150, 9840, 10004, 10200, 10370, 10455, 11152, 12200, 12300, 12444, 12505, 13940, 14640, 15006, 15555, 16400, 16592, 16728, 17425, 18300, 20008, 20400, 20740, 20910, 24400, 24600, 24888, 25010, 25925, 27880, 30012, 31110, 33456, 34850, 36600, 37515, 40016, 41480, 41820, 42517, 49200, 49776, 50020, 51850, 52275, 55760, 60024, 62220, 62525, 69700, 73200, 75030, 77775, 82960, 83640, 85034, 100040, 103700, 104550, 120048, 124440, 125050, 127551, 139400, 150060, 155550, 167280, 170068, 187575, 200080, 207400, 209100, 212585, 248880, 250100, 255102, 278800, 300120, 311100, 340136, 375150, 414800, 418200, 425170, 500200, 510204, 600240, 622200, 637755, 680272, 750300, 836400, 850340, 1000400, 1020408, 1062925, 1244400, 1275510, 1500600, 1700680, 2040816, 2125850, 2551020, 3001200, 3188775, 3401360, 4251700, 5102040, 6377550, 8503400, 10204080, 12755100, 17006800, 25510200, 51020400.
If you add them up, you will get the total of 180,175,968.