81214216

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{64661}}^1$

素因数の和:64824

約数の個数: 16

約数和(自身を含む): 153248940

約数和(自身を除く): 72034724

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 64661, 129322, 258644, 517288, 10151777, 20303554, 40607108, 81214216]

約数ペア:

[(1, 81214216), (2, 40607108), (4, 20303554), (8, 10151777), (157, 517288), (314, 258644), (628, 129322), (1256, 64661)]