78828800

素因数分解:

$2^8\times 5^2\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:248

約数の個数: 108

約数和(自身を含む): 198646140

約数和(自身を除く): 119817340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 109, 113, 128, 160, 200, 218, 226, 256, 320, 400, 436, 452, 545, 565, 640, 800, 872, 904, 1090, 1130, 1280, 1600, 1744, 1808, 2180, 2260, 2725, 2825, 3200, 3488, 3616, 4360, 4520, 5450, 5650, 6400, 6976, 7232, 8720, 9040, 10900, 11300, 12317, 13952, 14464, 17440, 18080, 21800, 22600, 24634, 27904, 28928, 34880, 36160, 43600, 45200, 49268, 61585, 69760, 72320, 87200, 90400, 98536, 123170, 139520, 144640, 174400, 180800, 197072, 246340, 307925, 348800, 361600, 394144, 492680, 615850, 697600, 723200, 788288, 985360, 1231700, 1576576, 1970720, 2463400, 3153152, 3941440, 4926800, 7882880, 9853600, 15765760, 19707200, 39414400, 78828800]

約数ペア:

[(1, 78828800), (2, 39414400), (4, 19707200), (5, 15765760), (8, 9853600), (10, 7882880), (16, 4926800), (20, 3941440), (25, 3153152), (32, 2463400), (40, 1970720), (50, 1576576), (64, 1231700), (80, 985360), (100, 788288), (109, 723200), (113, 697600), (128, 615850), (160, 492680), (200, 394144), (218, 361600), (226, 348800), (256, 307925), (320, 246340), (400, 197072), (436, 180800), (452, 174400), (545, 144640), (565, 139520), (640, 123170), (800, 98536), (872, 90400), (904, 87200), (1090, 72320), (1130, 69760), (1280, 61585), (1600, 49268), (1744, 45200), (1808, 43600), (2180, 36160), (2260, 34880), (2725, 28928), (2825, 27904), (3200, 24634), (3488, 22600), (3616, 21800), (4360, 18080), (4520, 17440), (5450, 14464), (5650, 13952), (6400, 12317), (6976, 11300), (7232, 10900), (8720, 9040)]