66705880

素因数分解:

$2^3\times 5^1\times {\mathrm{1667647}}^1$

素因数の和:1667658

約数の個数: 16

約数和(自身を含む): 150088320

約数和(自身を除く): 83382440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1667647, 3335294, 6670588, 8338235, 13341176, 16676470, 33352940, 66705880]

約数ペア:

[(1, 66705880), (2, 33352940), (4, 16676470), (5, 13341176), (8, 8338235), (10, 6670588), (20, 3335294), (40, 1667647)]