25969640

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1669}}^1$

素因数の和:2069

約数の個数: 32

約数和(自身を含む): 58617000

約数和(自身を除く): 32647360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1669, 1945, 3112, 3338, 3890, 6676, 7780, 8345, 13352, 15560, 16690, 33380, 66760, 649241, 1298482, 2596964, 3246205, 5193928, 6492410, 12984820, 25969640]

約数ペア:

[(1, 25969640), (2, 12984820), (4, 6492410), (5, 5193928), (8, 3246205), (10, 2596964), (20, 1298482), (40, 649241), (389, 66760), (778, 33380), (1556, 16690), (1669, 15560), (1945, 13352), (3112, 8345), (3338, 7780), (3890, 6676)]