12878000

素因数分解:

$2^4\times 5^3\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 80

約数和(自身を含む): 32033664

約数和(自身を除く): 19155664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 125, 137, 188, 200, 235, 250, 274, 376, 400, 470, 500, 548, 685, 752, 940, 1000, 1096, 1175, 1370, 1880, 2000, 2192, 2350, 2740, 3425, 3760, 4700, 5480, 5875, 6439, 6850, 9400, 10960, 11750, 12878, 13700, 17125, 18800, 23500, 25756, 27400, 32195, 34250, 47000, 51512, 54800, 64390, 68500, 94000, 103024, 128780, 137000, 160975, 257560, 274000, 321950, 515120, 643900, 804875, 1287800, 1609750, 2575600, 3219500, 6439000, 12878000]

約数ペア:

[(1, 12878000), (2, 6439000), (4, 3219500), (5, 2575600), (8, 1609750), (10, 1287800), (16, 804875), (20, 643900), (25, 515120), (40, 321950), (47, 274000), (50, 257560), (80, 160975), (94, 137000), (100, 128780), (125, 103024), (137, 94000), (188, 68500), (200, 64390), (235, 54800), (250, 51512), (274, 47000), (376, 34250), (400, 32195), (470, 27400), (500, 25756), (548, 23500), (685, 18800), (752, 17125), (940, 13700), (1000, 12878), (1096, 11750), (1175, 10960), (1370, 9400), (1880, 6850), (2000, 6439), (2192, 5875), (2350, 5480), (2740, 4700), (3425, 3760)]