971180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{991}}^1$

素因数の和:1014

約数の個数: 36

約数和(自身を含む): 2374848

約数和(自身を除く): 1403668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 991, 1982, 3964, 4955, 6937, 9910, 13874, 19820, 27748, 34685, 48559, 69370, 97118, 138740, 194236, 242795, 485590, 971180]

約数ペア:

[(1, 971180), (2, 485590), (4, 242795), (5, 194236), (7, 138740), (10, 97118), (14, 69370), (20, 48559), (28, 34685), (35, 27748), (49, 19820), (70, 13874), (98, 9910), (140, 6937), (196, 4955), (245, 3964), (490, 1982), (980, 991)]