The factors of the number 444,123,432 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 61, 72, 74, 108, 111, 122, 148, 183, 216, 222, 244, 296, 333, 366, 444, 488, 549, 666, 732, 888, 911, 999, 1098, 1332, 1464, 1647, 1822, 1998, 2196, 2257, 2664, 2733, 3294, 3644, 3996, 4392, 4514, 5466, 6588, 6771, 7288, 7992, 8199, 9028, 10932, 13176, 13542, 16398, 18056, 20313, 21864, 24597, 27084, 32796, 33707, 40626, 49194, 54168, 55571, 60939, 65592, 67414, 81252, 98388, 101121, 111142, 121878, 134828, 162504, 166713, 196776, 202242, 222284, 243756, 269656, 303363, 333426, 404484, 444568, 487512, 500139, 606726, 666852, 808968, 910089, 1000278, 1213452, 1333704, 1500417, 1820178, 2000556, 2056127, 2426904, 3000834, 3640356, 4001112, 4112254, 6001668, 6168381, 7280712, 8224508, 12003336, 12336762, 16449016, 18505143, 24673524, 37010286, 49347048, 55515429, 74020572, 111030858, 148041144, 222061716, 444123432.
If you add them up, you will get the total of 1,289,203,200.