2019796880

素因数分解:

$2^4\times 5^1\times {\mathrm{25247461}}^1$

素因数の和:25247474

約数の個数: 20

約数和(自身を含む): 4696027932

約数和(自身を除く): 2676231052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25247461, 50494922, 100989844, 126237305, 201979688, 252474610, 403959376, 504949220, 1009898440, 2019796880]

約数ペア:

[(1, 2019796880), (2, 1009898440), (4, 504949220), (5, 403959376), (8, 252474610), (10, 201979688), (16, 126237305), (20, 100989844), (40, 50494922), (80, 25247461)]