25856840

素因数分解:

$2^3\times 5^1\times {\mathrm{646421}}^1$

素因数の和:646432

約数の個数: 16

約数和(自身を含む): 58177980

約数和(自身を除く): 32321140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 646421, 1292842, 2585684, 3232105, 5171368, 6464210, 12928420, 25856840]

約数ペア:

[(1, 25856840), (2, 12928420), (4, 6464210), (5, 5171368), (8, 3232105), (10, 2585684), (20, 1292842), (40, 646421)]