66434840

素因数分解:

$2^3\times 5^1\times {\mathrm{1660871}}^1$

素因数の和:1660882

約数の個数: 16

約数和(自身を含む): 149478480

約数和(自身を除く): 83043640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1660871, 3321742, 6643484, 8304355, 13286968, 16608710, 33217420, 66434840]

約数ペア:

[(1, 66434840), (2, 33217420), (4, 16608710), (5, 13286968), (8, 8304355), (10, 6643484), (20, 3321742), (40, 1660871)]