20380456

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19447}}^1$

素因数の和:19584

約数の個数: 16

約数和(自身を含む): 38507040

約数和(自身を除く): 18126584

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19447, 38894, 77788, 155576, 2547557, 5095114, 10190228, 20380456]

約数ペア:

[(1, 20380456), (2, 10190228), (4, 5095114), (8, 2547557), (131, 155576), (262, 77788), (524, 38894), (1048, 19447)]