19610840

素因数分解:

$2^3\times 5^1\times {\mathrm{490271}}^1$

素因数の和:490282

約数の個数: 16

約数和(自身を含む): 44124480

約数和(自身を除く): 24513640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 490271, 980542, 1961084, 2451355, 3922168, 4902710, 9805420, 19610840]

約数ペア:

[(1, 19610840), (2, 9805420), (4, 4902710), (5, 3922168), (8, 2451355), (10, 1961084), (20, 980542), (40, 490271)]