20888555

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2029}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 26308800

約数和(自身を除く): 5420245

約数列:

[1, 5, 29, 71, 145, 355, 2029, 2059, 10145, 10295, 58841, 144059, 294205, 720295, 4177711, 20888555]

約数ペア:

[(1, 20888555), (5, 4177711), (29, 720295), (71, 294205), (145, 144059), (355, 58841), (2029, 10295), (2059, 10145)]