25945000

素因数分解:

$2^3\times 5^4\times {\mathrm{5189}}^1$

素因数の和:5215

約数の個数: 40

約数和(自身を含む): 60800850

約数和(自身を除く): 34855850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 5189, 10378, 20756, 25945, 41512, 51890, 103780, 129725, 207560, 259450, 518900, 648625, 1037800, 1297250, 2594500, 3243125, 5189000, 6486250, 12972500, 25945000]

約数ペア:

[(1, 25945000), (2, 12972500), (4, 6486250), (5, 5189000), (8, 3243125), (10, 2594500), (20, 1297250), (25, 1037800), (40, 648625), (50, 518900), (100, 259450), (125, 207560), (200, 129725), (250, 103780), (500, 51890), (625, 41512), (1000, 25945), (1250, 20756), (2500, 10378), (5000, 5189)]