25888000

素因数分解:

$2^8\times 5^3\times {\mathrm{809}}^1$

素因数の和:840

約数の個数: 72

約数和(自身を含む): 64569960

約数和(自身を除く): 38681960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 809, 1000, 1280, 1600, 1618, 2000, 3200, 3236, 4000, 4045, 6400, 6472, 8000, 8090, 12944, 16000, 16180, 20225, 25888, 32000, 32360, 40450, 51776, 64720, 80900, 101125, 103552, 129440, 161800, 202250, 207104, 258880, 323600, 404500, 517760, 647200, 809000, 1035520, 1294400, 1618000, 2588800, 3236000, 5177600, 6472000, 12944000, 25888000]

約数ペア:

[(1, 25888000), (2, 12944000), (4, 6472000), (5, 5177600), (8, 3236000), (10, 2588800), (16, 1618000), (20, 1294400), (25, 1035520), (32, 809000), (40, 647200), (50, 517760), (64, 404500), (80, 323600), (100, 258880), (125, 207104), (128, 202250), (160, 161800), (200, 129440), (250, 103552), (256, 101125), (320, 80900), (400, 64720), (500, 51776), (640, 40450), (800, 32360), (809, 32000), (1000, 25888), (1280, 20225), (1600, 16180), (1618, 16000), (2000, 12944), (3200, 8090), (3236, 8000), (4000, 6472), (4045, 6400)]