66553864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{639941}}^1$

素因数の和:639960

約数の個数: 16

約数和(自身を含む): 134387820

約数和(自身を除く): 67833956

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 639941, 1279882, 2559764, 5119528, 8319233, 16638466, 33276932, 66553864]

約数ペア:

[(1, 66553864), (2, 33276932), (4, 16638466), (8, 8319233), (13, 5119528), (26, 2559764), (52, 1279882), (104, 639941)]