12762800

素因数分解:

$2^4\times 5^2\times {\mathrm{31907}}^1$

素因数の和:31925

約数の個数: 30

約数和(自身を含む): 30663588

約数和(自身を除く): 17900788

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31907, 63814, 127628, 159535, 255256, 319070, 510512, 638140, 797675, 1276280, 1595350, 2552560, 3190700, 6381400, 12762800]

約数ペア:

[(1, 12762800), (2, 6381400), (4, 3190700), (5, 2552560), (8, 1595350), (10, 1276280), (16, 797675), (20, 638140), (25, 510512), (40, 319070), (50, 255256), (80, 159535), (100, 127628), (200, 63814), (400, 31907)]