25921880

素因数分解:

$2^3\times 5^1\times {\mathrm{648047}}^1$

素因数の和:648058

約数の個数: 16

約数和(自身を含む): 58324320

約数和(自身を除く): 32402440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 648047, 1296094, 2592188, 3240235, 5184376, 6480470, 12960940, 25921880]

約数ペア:

[(1, 25921880), (2, 12960940), (4, 6480470), (5, 5184376), (8, 3240235), (10, 2592188), (20, 1296094), (40, 648047)]