19396180

素因数分解:

$2^2\times 5^1\times {\mathrm{969809}}^1$

素因数の和:969818

約数の個数: 12

約数和(自身を含む): 40732020

約数和(自身を除く): 21335840

約数列:

[1, 2, 4, 5, 10, 20, 969809, 1939618, 3879236, 4849045, 9698090, 19396180]

約数ペア:

[(1, 19396180), (2, 9698090), (4, 4849045), (5, 3879236), (10, 1939618), (20, 969809)]