The factors of the number 405,622,020 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 41, 46, 60, 67, 69, 82, 92, 107, 115, 123, 134, 138, 164, 201, 205, 214, 230, 246, 268, 276, 321, 335, 345, 402, 410, 428, 460, 492, 535, 615, 642, 670, 690, 804, 820, 943, 1005, 1070, 1230, 1284, 1340, 1380, 1541, 1605, 1886, 2010, 2140, 2460, 2461, 2747, 2829, 3082, 3210, 3772, 4020, 4387, 4623, 4715, 4922, 5494, 5658, 6164, 6420, 7169, 7383, 7705, 8241, 8774, 9246, 9430, 9844, 10988, 11316, 12305, 13161, 13735, 14145, 14338, 14766, 15410, 16482, 17548, 18492, 18860, 21507, 21935, 23115, 24610, 26322, 27470, 28290, 28676, 29532, 30820, 32964, 35845, 36915, 41205, 43014, 43870, 46230, 49220, 52644, 54940, 56580, 63181, 65805, 71690, 73830, 82410, 86028, 87740, 92460, 100901, 107535, 126362, 131610, 143380, 147660, 164820, 164887, 189543, 201802, 215070, 252724, 263220, 293929, 302703, 315905, 329774, 379086, 403604, 430140, 494661, 504505, 587858, 605406, 631810, 659548, 758172, 824435, 881787, 947715, 989322, 1009010, 1175716, 1210812, 1263620, 1469645, 1513515, 1648870, 1763574, 1895430, 1978644, 2018020, 2473305, 2939290, 3027030, 3297740, 3527148, 3790860, 4408935, 4946610, 5878580, 6054060, 6760367, 8817870, 9893220, 13520734, 17635740, 20281101, 27041468, 33801835, 40562202, 67603670, 81124404, 101405505, 135207340, 202811010, 405622020.
If you add them up, you will get the total of 1,243,662,336.