1656557780

素因数分解:

$2^2\times 5^1\times {\mathrm{6691}}^1\times {\mathrm{12379}}^1$

素因数の和:19079

約数の個数: 24

約数和(自身を含む): 3479572320

約数和(自身を除く): 1823014540

約数列:

[1, 2, 4, 5, 10, 20, 6691, 12379, 13382, 24758, 26764, 33455, 49516, 61895, 66910, 123790, 133820, 247580, 82827889, 165655778, 331311556, 414139445, 828278890, 1656557780]

約数ペア:

[(1, 1656557780), (2, 828278890), (4, 414139445), (5, 331311556), (10, 165655778), (20, 82827889), (6691, 247580), (12379, 133820), (13382, 123790), (24758, 66910), (26764, 61895), (33455, 49516)]