66144560

素因数分解:

$2^4\times 5^1\times {\mathrm{826807}}^1$

素因数の和:826820

約数の個数: 20

約数和(自身を含む): 153786288

約数和(自身を除く): 87641728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 826807, 1653614, 3307228, 4134035, 6614456, 8268070, 13228912, 16536140, 33072280, 66144560]

約数ペア:

[(1, 66144560), (2, 33072280), (4, 16536140), (5, 13228912), (8, 8268070), (10, 6614456), (16, 4134035), (20, 3307228), (40, 1653614), (80, 826807)]