256431385

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{68473}}^1$

素因数の和:68592

約数の個数: 16

約数和(自身を含む): 354969216

約数和(自身を除く): 98537831

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 68473, 342365, 479311, 2396555, 7326611, 36633055, 51286277, 256431385]

約数ペア:

[(1, 256431385), (5, 51286277), (7, 36633055), (35, 7326611), (107, 2396555), (535, 479311), (749, 342365), (3745, 68473)]