The factors of the number 120,420,000 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 90, 96, 100, 108, 120, 125, 135, 144, 150, 160, 180, 200, 216, 223, 225, 240, 250, 270, 288, 300, 360, 375, 400, 432, 446, 450, 480, 500, 540, 600, 625, 669, 675, 720, 750, 800, 864, 892, 900, 1000, 1080, 1115, 1125, 1200, 1250, 1338, 1350, 1440, 1500, 1784, 1800, 1875, 2000, 2007, 2160, 2230, 2250, 2400, 2500, 2676, 2700, 3000, 3345, 3375, 3568, 3600, 3750, 4000, 4014, 4320, 4460, 4500, 5000, 5352, 5400, 5575, 5625, 6000, 6021, 6690, 6750, 7136, 7200, 7500, 8028, 8920, 9000, 10000, 10035, 10704, 10800, 11150, 11250, 12000, 12042, 13380, 13500, 15000, 16056, 16725, 16875, 17840, 18000, 20000, 20070, 21408, 21600, 22300, 22500, 24084, 26760, 27000, 27875, 30000, 30105, 32112, 33450, 33750, 35680, 36000, 40140, 44600, 45000, 48168, 50175, 53520, 54000, 55750, 60000, 60210, 64224, 66900, 67500, 80280, 83625, 89200, 90000, 96336, 100350, 107040, 108000, 111500, 120420, 133800, 135000, 139375, 150525, 160560, 167250, 178400, 180000, 192672, 200700, 223000, 240840, 250875, 267600, 270000, 278750, 301050, 321120, 334500, 401400, 418125, 446000, 481680, 501750, 535200, 540000, 557500, 602100, 669000, 752625, 802800, 836250, 892000, 963360, 1003500, 1115000, 1204200, 1254375, 1338000, 1505250, 1605600, 1672500, 2007000, 2230000, 2408400, 2508750, 2676000, 3010500, 3345000, 3763125, 4014000, 4460000, 4816800, 5017500, 6021000, 6690000, 7526250, 8028000, 10035000, 12042000, 13380000, 15052500, 20070000, 24084000, 30105000, 40140000, 60210000, 120420000.
If you add them up, you will get the total of 440,858,880.