The factors of the number 402,036,740 are: 1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 251, 340, 476, 502, 595, 673, 1004, 1190, 1255, 1346, 1757, 2380, 2510, 2692, 3365, 3514, 4267, 4711, 5020, 6730, 7028, 8534, 8785, 9422, 11441, 13460, 17068, 17570, 18844, 21335, 22882, 23555, 29869, 35140, 42670, 45764, 47110, 57205, 59738, 80087, 85340, 94220, 114410, 119476, 149345, 160174, 168923, 228820, 298690, 320348, 337846, 400435, 597380, 675692, 800870, 844615, 1182461, 1601740, 1689230, 2364922, 2871691, 3378460, 4729844, 5743382, 5912305, 11486764, 11824610, 14358455, 20101837, 23649220, 28716910, 40203674, 57433820, 80407348, 100509185, 201018370, 402036740.
If you add them up, you will get the total of 1,027,240,704.