201818260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205937}}^1$

素因数の和:205960

約数の個数: 36

約数和(自身を含む): 493015572

約数和(自身を除く): 291197312

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205937, 411874, 823748, 1029685, 1441559, 2059370, 2883118, 4118740, 5766236, 7207795, 10090913, 14415590, 20181826, 28831180, 40363652, 50454565, 100909130, 201818260]

約数ペア:

[(1, 201818260), (2, 100909130), (4, 50454565), (5, 40363652), (7, 28831180), (10, 20181826), (14, 14415590), (20, 10090913), (28, 7207795), (35, 5766236), (49, 4118740), (70, 2883118), (98, 2059370), (140, 1441559), (196, 1029685), (245, 823748), (490, 411874), (980, 205937)]