201871180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205991}}^1$

素因数の和:206014

約数の個数: 36

約数和(自身を含む): 493144848

約数和(自身を除く): 291273668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205991, 411982, 823964, 1029955, 1441937, 2059910, 2883874, 4119820, 5767748, 7209685, 10093559, 14419370, 20187118, 28838740, 40374236, 50467795, 100935590, 201871180]

約数ペア:

[(1, 201871180), (2, 100935590), (4, 50467795), (5, 40374236), (7, 28838740), (10, 20187118), (14, 14419370), (20, 10093559), (28, 7209685), (35, 5767748), (49, 4119820), (70, 2883874), (98, 2059910), (140, 1441937), (196, 1029955), (245, 823964), (490, 411982), (980, 205991)]