The factors of the number 15,831,900 are: 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 49, 50, 60, 63, 70, 75, 84, 90, 98, 100, 105, 126, 140, 147, 150, 175, 180, 196, 210, 225, 245, 252, 294, 300, 315, 350, 359, 420, 441, 450, 490, 525, 588, 630, 700, 718, 735, 882, 900, 980, 1050, 1077, 1225, 1260, 1436, 1470, 1575, 1764, 1795, 2100, 2154, 2205, 2450, 2513, 2940, 3150, 3231, 3590, 3675, 4308, 4410, 4900, 5026, 5385, 6300, 6462, 7180, 7350, 7539, 8820, 8975, 10052, 10770, 11025, 12565, 12924, 14700, 15078, 16155, 17591, 17950, 21540, 22050, 22617, 25130, 26925, 30156, 32310, 35182, 35900, 37695, 44100, 45234, 50260, 52773, 53850, 62825, 64620, 70364, 75390, 80775, 87955, 90468, 105546, 107700, 113085, 125650, 150780, 158319, 161550, 175910, 188475, 211092, 226170, 251300, 263865, 316638, 323100, 351820, 376950, 439775, 452340, 527730, 565425, 633276, 753900, 791595, 879550, 1055460, 1130850, 1319325, 1583190, 1759100, 2261700, 2638650, 3166380, 3957975, 5277300, 7915950, 15831900.
If you add them up, you will get the total of 15,831,942. Now subtract 15,831,900 to get 42,055,020