6880000

素因数分解:

$2^8\times 5^4\times {\mathrm{43}}^1$

素因数の和:79

約数の個数: 90

約数和(自身を含む): 17560004

約数和(自身を除く): 10680004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 125, 128, 160, 172, 200, 215, 250, 256, 320, 344, 400, 430, 500, 625, 640, 688, 800, 860, 1000, 1075, 1250, 1280, 1376, 1600, 1720, 2000, 2150, 2500, 2752, 3200, 3440, 4000, 4300, 5000, 5375, 5504, 6400, 6880, 8000, 8600, 10000, 10750, 11008, 13760, 16000, 17200, 20000, 21500, 26875, 27520, 32000, 34400, 40000, 43000, 53750, 55040, 68800, 80000, 86000, 107500, 137600, 160000, 172000, 215000, 275200, 344000, 430000, 688000, 860000, 1376000, 1720000, 3440000, 6880000]

約数ペア:

[(1, 6880000), (2, 3440000), (4, 1720000), (5, 1376000), (8, 860000), (10, 688000), (16, 430000), (20, 344000), (25, 275200), (32, 215000), (40, 172000), (43, 160000), (50, 137600), (64, 107500), (80, 86000), (86, 80000), (100, 68800), (125, 55040), (128, 53750), (160, 43000), (172, 40000), (200, 34400), (215, 32000), (250, 27520), (256, 26875), (320, 21500), (344, 20000), (400, 17200), (430, 16000), (500, 13760), (625, 11008), (640, 10750), (688, 10000), (800, 8600), (860, 8000), (1000, 6880), (1075, 6400), (1250, 5504), (1280, 5375), (1376, 5000), (1600, 4300), (1720, 4000), (2000, 3440), (2150, 3200), (2500, 2752)]