12745000

素因数分解:

$2^3\times 5^4\times {\mathrm{2549}}^1$

素因数の和:2575

約数の個数: 40

約数和(自身を含む): 29873250

約数和(自身を除く): 17128250

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 2549, 5000, 5098, 10196, 12745, 20392, 25490, 50980, 63725, 101960, 127450, 254900, 318625, 509800, 637250, 1274500, 1593125, 2549000, 3186250, 6372500, 12745000]

約数ペア:

[(1, 12745000), (2, 6372500), (4, 3186250), (5, 2549000), (8, 1593125), (10, 1274500), (20, 637250), (25, 509800), (40, 318625), (50, 254900), (100, 127450), (125, 101960), (200, 63725), (250, 50980), (500, 25490), (625, 20392), (1000, 12745), (1250, 10196), (2500, 5098), (2549, 5000)]