19801750

素因数分解:

$2^1\times 5^3\times {\mathrm{103}}^1\times {\mathrm{769}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 37477440

約数和(自身を除く): 17675690

約数列:

[1, 2, 5, 10, 25, 50, 103, 125, 206, 250, 515, 769, 1030, 1538, 2575, 3845, 5150, 7690, 12875, 19225, 25750, 38450, 79207, 96125, 158414, 192250, 396035, 792070, 1980175, 3960350, 9900875, 19801750]

約数ペア:

[(1, 19801750), (2, 9900875), (5, 3960350), (10, 1980175), (25, 792070), (50, 396035), (103, 192250), (125, 158414), (206, 96125), (250, 79207), (515, 38450), (769, 25750), (1030, 19225), (1538, 12875), (2575, 7690), (3845, 5150)]