7976000

素因数分解:

$2^6\times 5^3\times {\mathrm{997}}^1$

素因数の和:1024

約数の個数: 56

約数和(自身を含む): 19772376

約数和(自身を除く): 11796376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 997, 1000, 1600, 1994, 2000, 3988, 4000, 4985, 7976, 8000, 9970, 15952, 19940, 24925, 31904, 39880, 49850, 63808, 79760, 99700, 124625, 159520, 199400, 249250, 319040, 398800, 498500, 797600, 997000, 1595200, 1994000, 3988000, 7976000]

約数ペア:

[(1, 7976000), (2, 3988000), (4, 1994000), (5, 1595200), (8, 997000), (10, 797600), (16, 498500), (20, 398800), (25, 319040), (32, 249250), (40, 199400), (50, 159520), (64, 124625), (80, 99700), (100, 79760), (125, 63808), (160, 49850), (200, 39880), (250, 31904), (320, 24925), (400, 19940), (500, 15952), (800, 9970), (997, 8000), (1000, 7976), (1600, 4985), (1994, 4000), (2000, 3988)]