6812500

素因数分解:

$2^2\times 5^6\times {\mathrm{109}}^1$

素因数の和:143

約数の個数: 42

約数和(自身を含む): 15038870

約数和(自身を除く): 8226370

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 436, 500, 545, 625, 1090, 1250, 2180, 2500, 2725, 3125, 5450, 6250, 10900, 12500, 13625, 15625, 27250, 31250, 54500, 62500, 68125, 136250, 272500, 340625, 681250, 1362500, 1703125, 3406250, 6812500]

約数ペア:

[(1, 6812500), (2, 3406250), (4, 1703125), (5, 1362500), (10, 681250), (20, 340625), (25, 272500), (50, 136250), (100, 68125), (109, 62500), (125, 54500), (218, 31250), (250, 27250), (436, 15625), (500, 13625), (545, 12500), (625, 10900), (1090, 6250), (1250, 5450), (2180, 3125), (2500, 2725)]