264889456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1273507}}^1$

素因数の和:1273528

約数の個数: 20

約数和(自身を含む): 552702472

約数和(自身を除く): 287813016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1273507, 2547014, 5094028, 10188056, 16555591, 20376112, 33111182, 66222364, 132444728, 264889456]

約数ペア:

[(1, 264889456), (2, 132444728), (4, 66222364), (8, 33111182), (13, 20376112), (16, 16555591), (26, 10188056), (52, 5094028), (104, 2547014), (208, 1273507)]