1981030

素因数分解:

$2^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{499}}^1$

素因数の和:903

約数の個数: 16

約数和(自身を含む): 3582000

約数和(自身を除く): 1600970

約数列:

[1, 2, 5, 10, 397, 499, 794, 998, 1985, 2495, 3970, 4990, 198103, 396206, 990515, 1981030]

約数ペア:

[(1, 1981030), (2, 990515), (5, 396206), (10, 198103), (397, 4990), (499, 3970), (794, 2495), (998, 1985)]