128320020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{712889}}^1$

素因数の和:712904

約数の個数: 36

約数和(自身を含む): 389237940

約数和(自身を除く): 260917920

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 712889, 1425778, 2138667, 2851556, 3564445, 4277334, 6416001, 7128890, 8554668, 10693335, 12832002, 14257780, 21386670, 25664004, 32080005, 42773340, 64160010, 128320020]

約数ペア:

[(1, 128320020), (2, 64160010), (3, 42773340), (4, 32080005), (5, 25664004), (6, 21386670), (9, 14257780), (10, 12832002), (12, 10693335), (15, 8554668), (18, 7128890), (20, 6416001), (30, 4277334), (36, 3564445), (45, 2851556), (60, 2138667), (90, 1425778), (180, 712889)]