2725000

素因数分解:

$2^3\times 5^5\times {\mathrm{109}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 6444900

約数和(自身を除く): 3719900

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 125, 200, 218, 250, 436, 500, 545, 625, 872, 1000, 1090, 1250, 2180, 2500, 2725, 3125, 4360, 5000, 5450, 6250, 10900, 12500, 13625, 21800, 25000, 27250, 54500, 68125, 109000, 136250, 272500, 340625, 545000, 681250, 1362500, 2725000]

約数ペア:

[(1, 2725000), (2, 1362500), (4, 681250), (5, 545000), (8, 340625), (10, 272500), (20, 136250), (25, 109000), (40, 68125), (50, 54500), (100, 27250), (109, 25000), (125, 21800), (200, 13625), (218, 12500), (250, 10900), (436, 6250), (500, 5450), (545, 5000), (625, 4360), (872, 3125), (1000, 2725), (1090, 2500), (1250, 2180)]