20498410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28871}}^1$

素因数の和:28949

約数の個数: 16

約数和(自身を含む): 37418112

約数和(自身を除く): 16919702

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28871, 57742, 144355, 288710, 2049841, 4099682, 10249205, 20498410]

約数ペア:

[(1, 20498410), (2, 10249205), (5, 4099682), (10, 2049841), (71, 288710), (142, 144355), (355, 57742), (710, 28871)]