79748000

素因数分解:

$2^5\times 5^3\times {\mathrm{19937}}^1$

素因数の和:19962

約数の個数: 48

約数和(自身を含む): 195950664

約数和(自身を除く): 116202664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 19937, 39874, 79748, 99685, 159496, 199370, 318992, 398740, 498425, 637984, 797480, 996850, 1594960, 1993700, 2492125, 3189920, 3987400, 4984250, 7974800, 9968500, 15949600, 19937000, 39874000, 79748000]

約数ペア:

[(1, 79748000), (2, 39874000), (4, 19937000), (5, 15949600), (8, 9968500), (10, 7974800), (16, 4984250), (20, 3987400), (25, 3189920), (32, 2492125), (40, 1993700), (50, 1594960), (80, 996850), (100, 797480), (125, 637984), (160, 498425), (200, 398740), (250, 318992), (400, 199370), (500, 159496), (800, 99685), (1000, 79748), (2000, 39874), (4000, 19937)]