66720140

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{3761}}^1$

素因数の和:4657

約数の個数: 24

約数和(自身を含む): 140307552

約数和(自身を除く): 73587412

約数列:

[1, 2, 4, 5, 10, 20, 887, 1774, 3548, 3761, 4435, 7522, 8870, 15044, 17740, 18805, 37610, 75220, 3336007, 6672014, 13344028, 16680035, 33360070, 66720140]

約数ペア:

[(1, 66720140), (2, 33360070), (4, 16680035), (5, 13344028), (10, 6672014), (20, 3336007), (887, 75220), (1774, 37610), (3548, 18805), (3761, 17740), (4435, 15044), (7522, 8870)]