8725000

素因数分解:

$2^3\times 5^5\times {\mathrm{349}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 20506500

約数和(自身を除く): 11781500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 349, 500, 625, 698, 1000, 1250, 1396, 1745, 2500, 2792, 3125, 3490, 5000, 6250, 6980, 8725, 12500, 13960, 17450, 25000, 34900, 43625, 69800, 87250, 174500, 218125, 349000, 436250, 872500, 1090625, 1745000, 2181250, 4362500, 8725000]

約数ペア:

[(1, 8725000), (2, 4362500), (4, 2181250), (5, 1745000), (8, 1090625), (10, 872500), (20, 436250), (25, 349000), (40, 218125), (50, 174500), (100, 87250), (125, 69800), (200, 43625), (250, 34900), (349, 25000), (500, 17450), (625, 13960), (698, 12500), (1000, 8725), (1250, 6980), (1396, 6250), (1745, 5000), (2500, 3490), (2792, 3125)]