78888640

素因数分解:

$2^6\times 5^1\times {\mathrm{246527}}^1$

素因数の和:246544

約数の個数: 28

約数和(自身を含む): 187854336

約数和(自身を除く): 108965696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 246527, 493054, 986108, 1232635, 1972216, 2465270, 3944432, 4930540, 7888864, 9861080, 15777728, 19722160, 39444320, 78888640]

約数ペア:

[(1, 78888640), (2, 39444320), (4, 19722160), (5, 15777728), (8, 9861080), (10, 7888864), (16, 4930540), (20, 3944432), (32, 2465270), (40, 1972216), (64, 1232635), (80, 986108), (160, 493054), (320, 246527)]