17440000

素因数分解:

$2^8\times 5^4\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 90

約数和(自身を含む): 43900010

約数和(自身を除く): 26460010

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 109, 125, 128, 160, 200, 218, 250, 256, 320, 400, 436, 500, 545, 625, 640, 800, 872, 1000, 1090, 1250, 1280, 1600, 1744, 2000, 2180, 2500, 2725, 3200, 3488, 4000, 4360, 5000, 5450, 6400, 6976, 8000, 8720, 10000, 10900, 13625, 13952, 16000, 17440, 20000, 21800, 27250, 27904, 32000, 34880, 40000, 43600, 54500, 68125, 69760, 80000, 87200, 109000, 136250, 139520, 160000, 174400, 218000, 272500, 348800, 436000, 545000, 697600, 872000, 1090000, 1744000, 2180000, 3488000, 4360000, 8720000, 17440000]

約数ペア:

[(1, 17440000), (2, 8720000), (4, 4360000), (5, 3488000), (8, 2180000), (10, 1744000), (16, 1090000), (20, 872000), (25, 697600), (32, 545000), (40, 436000), (50, 348800), (64, 272500), (80, 218000), (100, 174400), (109, 160000), (125, 139520), (128, 136250), (160, 109000), (200, 87200), (218, 80000), (250, 69760), (256, 68125), (320, 54500), (400, 43600), (436, 40000), (500, 34880), (545, 32000), (625, 27904), (640, 27250), (800, 21800), (872, 20000), (1000, 17440), (1090, 16000), (1250, 13952), (1280, 13625), (1600, 10900), (1744, 10000), (2000, 8720), (2180, 8000), (2500, 6976), (2725, 6400), (3200, 5450), (3488, 5000), (4000, 4360)]