2020400

素因数分解:

$2^4\times 5^2\times {\mathrm{5051}}^1$

素因数の和:5069

約数の個数: 30

約数和(自身を含む): 4854972

約数和(自身を除く): 2834572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 5051, 10102, 20204, 25255, 40408, 50510, 80816, 101020, 126275, 202040, 252550, 404080, 505100, 1010200, 2020400]

約数ペア:

[(1, 2020400), (2, 1010200), (4, 505100), (5, 404080), (8, 252550), (10, 202040), (16, 126275), (20, 101020), (25, 80816), (40, 50510), (50, 40408), (80, 25255), (100, 20204), (200, 10102), (400, 5051)]