256380838

素因数分解:

$2^1\times 7^3\times {\mathrm{337}}^1\times {\mathrm{1109}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 450216000

約数和(自身を除く): 193835162

約数列:

[1, 2, 7, 14, 49, 98, 337, 343, 674, 686, 1109, 2218, 2359, 4718, 7763, 15526, 16513, 33026, 54341, 108682, 115591, 231182, 373733, 380387, 747466, 760774, 2616131, 5232262, 18312917, 36625834, 128190419, 256380838]

約数ペア:

[(1, 256380838), (2, 128190419), (7, 36625834), (14, 18312917), (49, 5232262), (98, 2616131), (337, 760774), (343, 747466), (674, 380387), (686, 373733), (1109, 231182), (2218, 115591), (2359, 108682), (4718, 54341), (7763, 33026), (15526, 16513)]