12387920

素因数分解:

$2^4\times 5^1\times {\mathrm{154849}}^1$

素因数の和:154862

約数の個数: 20

約数和(自身を含む): 28802100

約数和(自身を除く): 16414180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 154849, 309698, 619396, 774245, 1238792, 1548490, 2477584, 3096980, 6193960, 12387920]

約数ペア:

[(1, 12387920), (2, 6193960), (4, 3096980), (5, 2477584), (8, 1548490), (10, 1238792), (16, 774245), (20, 619396), (40, 309698), (80, 154849)]