51604400

素因数分解:

$2^4\times 5^2\times {\mathrm{129011}}^1$

素因数の和:129029

約数の個数: 30

約数和(自身を含む): 123980532

約数和(自身を除く): 72376132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 129011, 258022, 516044, 645055, 1032088, 1290110, 2064176, 2580220, 3225275, 5160440, 6450550, 10320880, 12901100, 25802200, 51604400]

約数ペア:

[(1, 51604400), (2, 25802200), (4, 12901100), (5, 10320880), (8, 6450550), (10, 5160440), (16, 3225275), (20, 2580220), (25, 2064176), (40, 1290110), (50, 1032088), (80, 645055), (100, 516044), (200, 258022), (400, 129011)]