3986440

素因数分解:

$2^3\times 5^1\times {\mathrm{99661}}^1$

素因数の和:99672

約数の個数: 16

約数和(自身を含む): 8969580

約数和(自身を除く): 4983140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 99661, 199322, 398644, 498305, 797288, 996610, 1993220, 3986440]

約数ペア:

[(1, 3986440), (2, 1993220), (4, 996610), (5, 797288), (8, 498305), (10, 398644), (20, 199322), (40, 99661)]