28040868

素因数分解:

$2^2\times 3^2\times {\mathrm{778913}}^1$

素因数の和:778923

約数の個数: 18

約数和(自身を含む): 70881174

約数和(自身を除く): 42840306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 778913, 1557826, 2336739, 3115652, 4673478, 7010217, 9346956, 14020434, 28040868]

約数ペア:

[(1, 28040868), (2, 14020434), (3, 9346956), (4, 7010217), (6, 4673478), (9, 3115652), (12, 2336739), (18, 1557826), (36, 778913)]