1296781018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{208687}}^1$

素因数の和:208941

約数の個数: 16

約数和(自身を含む): 2103575040

約数和(自身を除く): 806794022

約数列:

[1, 2, 13, 26, 239, 478, 3107, 6214, 208687, 417374, 2712931, 5425862, 49876193, 99752386, 648390509, 1296781018]

約数ペア:

[(1, 1296781018), (2, 648390509), (13, 99752386), (26, 49876193), (239, 5425862), (478, 2712931), (3107, 417374), (6214, 208687)]