20068820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7219}}^1$

素因数の和:7367

約数の個数: 24

約数和(自身を含む): 42453600

約数和(自身を除く): 22384780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7219, 14438, 28876, 36095, 72190, 144380, 1003441, 2006882, 4013764, 5017205, 10034410, 20068820]

約数ペア:

[(1, 20068820), (2, 10034410), (4, 5017205), (5, 4013764), (10, 2006882), (20, 1003441), (139, 144380), (278, 72190), (556, 36095), (695, 28876), (1390, 14438), (2780, 7219)]