8039440

素因数分解:

$2^4\times 5^1\times {\mathrm{100493}}^1$

素因数の和:100506

約数の個数: 20

約数和(自身を含む): 18691884

約数和(自身を除く): 10652444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 100493, 200986, 401972, 502465, 803944, 1004930, 1607888, 2009860, 4019720, 8039440]

約数ペア:

[(1, 8039440), (2, 4019720), (4, 2009860), (5, 1607888), (8, 1004930), (10, 803944), (16, 502465), (20, 401972), (40, 200986), (80, 100493)]