25490000

素因数分解:

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

素因数の和:2577

約数の個数: 50

約数和(自身を含む): 61738050

約数和(自身を除く): 36248050

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 2549, 5000, 5098, 10000, 10196, 12745, 20392, 25490, 40784, 50980, 63725, 101960, 127450, 203920, 254900, 318625, 509800, 637250, 1019600, 1274500, 1593125, 2549000, 3186250, 5098000, 6372500, 12745000, 25490000]

約数ペア:

[(1, 25490000), (2, 12745000), (4, 6372500), (5, 5098000), (8, 3186250), (10, 2549000), (16, 1593125), (20, 1274500), (25, 1019600), (40, 637250), (50, 509800), (80, 318625), (100, 254900), (125, 203920), (200, 127450), (250, 101960), (400, 63725), (500, 50980), (625, 40784), (1000, 25490), (1250, 20392), (2000, 12745), (2500, 10196), (2549, 10000), (5000, 5098)]