20160787580

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1980431}}^1$

素因数の和:1980949

約数の個数: 24

約数和(自身を含む): 42420853440

約数和(自身を除く): 22260065860

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 10180, 1980431, 3960862, 7921724, 9902155, 19804310, 39608620, 1008039379, 2016078758, 4032157516, 5040196895, 10080393790, 20160787580]

約数ペア:

[(1, 20160787580), (2, 10080393790), (4, 5040196895), (5, 4032157516), (10, 2016078758), (20, 1008039379), (509, 39608620), (1018, 19804310), (2036, 9902155), (2545, 7921724), (5090, 3960862), (10180, 1980431)]