20164515880

素因数分解:

$2^3\times 5^1\times {\mathrm{504112897}}^1$

素因数の和:504112908

約数の個数: 16

約数和(自身を含む): 45370160820

約数和(自身を除く): 25205644940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504112897, 1008225794, 2016451588, 2520564485, 4032903176, 5041128970, 10082257940, 20164515880]

約数ペア:

[(1, 20164515880), (2, 10082257940), (4, 5041128970), (5, 4032903176), (8, 2520564485), (10, 2016451588), (20, 1008225794), (40, 504112897)]