390407780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2788627}}^1$

素因数の和:2788643

約数の個数: 24

約数和(自身を含む): 936979008

約数和(自身を除く): 546571228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2788627, 5577254, 11154508, 13943135, 19520389, 27886270, 39040778, 55772540, 78081556, 97601945, 195203890, 390407780]

約数ペア:

[(1, 390407780), (2, 195203890), (4, 97601945), (5, 78081556), (7, 55772540), (10, 39040778), (14, 27886270), (20, 19520389), (28, 13943135), (35, 11154508), (70, 5577254), (140, 2788627)]