19468180

素因数分解:

$2^2\times 5^1\times {\mathrm{973409}}^1$

素因数の和:973418

約数の個数: 12

約数和(自身を含む): 40883220

約数和(自身を除く): 21415040

約数列:

[1, 2, 4, 5, 10, 20, 973409, 1946818, 3893636, 4867045, 9734090, 19468180]

約数ペア:

[(1, 19468180), (2, 9734090), (4, 4867045), (5, 3893636), (10, 1946818), (20, 973409)]