2664400

素因数分解:

$2^4\times 5^2\times {\mathrm{6661}}^1$

素因数の和:6679

約数の個数: 30

約数和(自身を含む): 6402182

約数和(自身を除く): 3737782

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 6661, 13322, 26644, 33305, 53288, 66610, 106576, 133220, 166525, 266440, 333050, 532880, 666100, 1332200, 2664400]

約数ペア:

[(1, 2664400), (2, 1332200), (4, 666100), (5, 532880), (8, 333050), (10, 266440), (16, 166525), (20, 133220), (25, 106576), (40, 66610), (50, 53288), (80, 33305), (100, 26644), (200, 13322), (400, 6661)]