20161193456

素因数分解:

$2^4\times {\mathrm{3109}}^1\times {\mathrm{405299}}^1$

素因数の和:408416

約数の個数: 20

約数和(自身を含む): 39074973000

約数和(自身を除く): 18913779544

約数列:

[1, 2, 4, 8, 16, 3109, 6218, 12436, 24872, 49744, 405299, 810598, 1621196, 3242392, 6484784, 1260074591, 2520149182, 5040298364, 10080596728, 20161193456]

約数ペア:

[(1, 20161193456), (2, 10080596728), (4, 5040298364), (8, 2520149182), (16, 1260074591), (3109, 6484784), (6218, 3242392), (12436, 1621196), (24872, 810598), (49744, 405299)]