83940400

素因数分解:

$2^4\times 5^2\times {\mathrm{209851}}^1$

素因数の和:209869

約数の個数: 30

約数和(自身を含む): 201667772

約数和(自身を除く): 117727372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 209851, 419702, 839404, 1049255, 1678808, 2098510, 3357616, 4197020, 5246275, 8394040, 10492550, 16788080, 20985100, 41970200, 83940400]

約数ペア:

[(1, 83940400), (2, 41970200), (4, 20985100), (5, 16788080), (8, 10492550), (10, 8394040), (16, 5246275), (20, 4197020), (25, 3357616), (40, 2098510), (50, 1678808), (80, 1049255), (100, 839404), (200, 419702), (400, 209851)]