66986608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{322051}}^1$

素因数の和:322072

約数の個数: 20

約数和(自身を含む): 139770568

約数和(自身を除く): 72783960

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 322051, 644102, 1288204, 2576408, 4186663, 5152816, 8373326, 16746652, 33493304, 66986608]

約数ペア:

[(1, 66986608), (2, 33493304), (4, 16746652), (8, 8373326), (13, 5152816), (16, 4186663), (26, 2576408), (52, 1288204), (104, 644102), (208, 322051)]