39221680

素因数分解:

$2^4\times 5^1\times {\mathrm{490271}}^1$

素因数の和:490284

約数の個数: 20

約数和(自身を含む): 91190592

約数和(自身を除く): 51968912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 490271, 980542, 1961084, 2451355, 3922168, 4902710, 7844336, 9805420, 19610840, 39221680]

約数ペア:

[(1, 39221680), (2, 19610840), (4, 9805420), (5, 7844336), (8, 4902710), (10, 3922168), (16, 2451355), (20, 1961084), (40, 980542), (80, 490271)]