66631864

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{640691}}^1$

素因数の和:640710

約数の個数: 16

約数和(自身を含む): 134545320

約数和(自身を除く): 67913456

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 640691, 1281382, 2562764, 5125528, 8328983, 16657966, 33315932, 66631864]

約数ペア:

[(1, 66631864), (2, 33315932), (4, 16657966), (8, 8328983), (13, 5125528), (26, 2562764), (52, 1281382), (104, 640691)]