20498690

素因数分解:

$2^1\times 5^1\times {\mathrm{719}}^1\times {\mathrm{2851}}^1$

素因数の和:3577

約数の個数: 16

約数和(自身を含む): 36961920

約数和(自身を除く): 16463230

約数列:

[1, 2, 5, 10, 719, 1438, 2851, 3595, 5702, 7190, 14255, 28510, 2049869, 4099738, 10249345, 20498690]

約数ペア:

[(1, 20498690), (2, 10249345), (5, 4099738), (10, 2049869), (719, 28510), (1438, 14255), (2851, 7190), (3595, 5702)]