255713978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{317263}}^1$

素因数の和:317309

約数の個数: 16

約数和(自身を含む): 426402816

約数和(自身を除く): 170688838

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 317263, 634526, 4124419, 8248838, 9835153, 19670306, 127856989, 255713978]

約数ペア:

[(1, 255713978), (2, 127856989), (13, 19670306), (26, 9835153), (31, 8248838), (62, 4124419), (403, 634526), (806, 317263)]