3940400

素因数分解:

$2^4\times 5^2\times {\mathrm{9851}}^1$

素因数の和:9869

約数の個数: 30

約数和(自身を含む): 9467772

約数和(自身を除く): 5527372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 9851, 19702, 39404, 49255, 78808, 98510, 157616, 197020, 246275, 394040, 492550, 788080, 985100, 1970200, 3940400]

約数ペア:

[(1, 3940400), (2, 1970200), (4, 985100), (5, 788080), (8, 492550), (10, 394040), (16, 246275), (20, 197020), (25, 157616), (40, 98510), (50, 78808), (80, 49255), (100, 39404), (200, 19702), (400, 9851)]