20402185055

素因数分解:

$5^1\times 7^1\times {\mathrm{2143}}^1\times {\mathrm{272011}}^1$

素因数の和:274166

約数の個数: 16

約数和(自身を含む): 27993298944

約数和(自身を除く): 7591113889

約数列:

[1, 5, 7, 35, 2143, 10715, 15001, 75005, 272011, 1360055, 1904077, 9520385, 582919573, 2914597865, 4080437011, 20402185055]

約数ペア:

[(1, 20402185055), (5, 4080437011), (7, 2914597865), (35, 582919573), (2143, 9520385), (10715, 1904077), (15001, 1360055), (75005, 272011)]