1813640

素因数分解:

$2^3\times 5^1\times {\mathrm{45341}}^1$

素因数の和:45352

約数の個数: 16

約数和(自身を含む): 4080780

約数和(自身を除く): 2267140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45341, 90682, 181364, 226705, 362728, 453410, 906820, 1813640]

約数ペア:

[(1, 1813640), (2, 906820), (4, 453410), (5, 362728), (8, 226705), (10, 181364), (20, 90682), (40, 45341)]