66709864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{641441}}^1$

素因数の和:641460

約数の個数: 16

約数和(自身を含む): 134702820

約数和(自身を除く): 67992956

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 641441, 1282882, 2565764, 5131528, 8338733, 16677466, 33354932, 66709864]

約数ペア:

[(1, 66709864), (2, 33354932), (4, 16677466), (8, 8338733), (13, 5131528), (26, 2565764), (52, 1282882), (104, 641441)]