1294400

素因数分解:

$2^6\times 5^2\times {\mathrm{809}}^1$

素因数の和:831

約数の個数: 42

約数和(自身を含む): 3188970

約数和(自身を除く): 1894570

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 809, 1600, 1618, 3236, 4045, 6472, 8090, 12944, 16180, 20225, 25888, 32360, 40450, 51776, 64720, 80900, 129440, 161800, 258880, 323600, 647200, 1294400]

約数ペア:

[(1, 1294400), (2, 647200), (4, 323600), (5, 258880), (8, 161800), (10, 129440), (16, 80900), (20, 64720), (25, 51776), (32, 40450), (40, 32360), (50, 25888), (64, 20225), (80, 16180), (100, 12944), (160, 8090), (200, 6472), (320, 4045), (400, 3236), (800, 1618), (809, 1600)]