20505830

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4567}}^1$

素因数の和:5023

約数の個数: 16

約数和(自身を含む): 37000800

約数和(自身を除く): 16494970

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 4567, 9134, 22835, 45670, 2050583, 4101166, 10252915, 20505830]

約数ペア:

[(1, 20505830), (2, 10252915), (5, 4101166), (10, 2050583), (449, 45670), (898, 22835), (2245, 9134), (4490, 4567)]