12972500

素因数分解:

$2^2\times 5^4\times {\mathrm{5189}}^1$

素因数の和:5213

約数の個数: 30

約数和(自身を含む): 28373730

約数和(自身を除く): 15401230

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 5189, 10378, 20756, 25945, 51890, 103780, 129725, 259450, 518900, 648625, 1297250, 2594500, 3243125, 6486250, 12972500]

約数ペア:

[(1, 12972500), (2, 6486250), (4, 3243125), (5, 2594500), (10, 1297250), (20, 648625), (25, 518900), (50, 259450), (100, 129725), (125, 103780), (250, 51890), (500, 25945), (625, 20756), (1250, 10378), (2500, 5189)]