19307660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10847}}^1$

素因数の和:10945

約数の個数: 24

約数和(自身を含む): 41005440

約数和(自身を除く): 21697780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10847, 21694, 43388, 54235, 108470, 216940, 965383, 1930766, 3861532, 4826915, 9653830, 19307660]

約数ペア:

[(1, 19307660), (2, 9653830), (4, 4826915), (5, 3861532), (10, 1930766), (20, 965383), (89, 216940), (178, 108470), (356, 54235), (445, 43388), (890, 21694), (1780, 10847)]