128795000

素因数分解:

$2^3\times 5^4\times {\mathrm{25759}}^1$

素因数の和:25785

約数の個数: 40

約数和(自身を含む): 301778400

約数和(自身を除く): 172983400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 25759, 51518, 103036, 128795, 206072, 257590, 515180, 643975, 1030360, 1287950, 2575900, 3219875, 5151800, 6439750, 12879500, 16099375, 25759000, 32198750, 64397500, 128795000]

約数ペア:

[(1, 128795000), (2, 64397500), (4, 32198750), (5, 25759000), (8, 16099375), (10, 12879500), (20, 6439750), (25, 5151800), (40, 3219875), (50, 2575900), (100, 1287950), (125, 1030360), (200, 643975), (250, 515180), (500, 257590), (625, 206072), (1000, 128795), (1250, 103036), (2500, 51518), (5000, 25759)]