66601940

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{5179}}^1$

素因数の和:5831

約数の個数: 24

約数和(自身を含む): 140108640

約数和(自身を除く): 73506700

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 5179, 6430, 10358, 12860, 20716, 25895, 51790, 103580, 3330097, 6660194, 13320388, 16650485, 33300970, 66601940]

約数ペア:

[(1, 66601940), (2, 33300970), (4, 16650485), (5, 13320388), (10, 6660194), (20, 3330097), (643, 103580), (1286, 51790), (2572, 25895), (3215, 20716), (5179, 12860), (6430, 10358)]