67680380

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{2749}}^1$

素因数の和:3989

約数の個数: 24

約数和(自身を含む): 142296000

約数和(自身を除く): 74615620

約数列:

[1, 2, 4, 5, 10, 20, 1231, 2462, 2749, 4924, 5498, 6155, 10996, 12310, 13745, 24620, 27490, 54980, 3384019, 6768038, 13536076, 16920095, 33840190, 67680380]

約数ペア:

[(1, 67680380), (2, 33840190), (4, 16920095), (5, 13536076), (10, 6768038), (20, 3384019), (1231, 54980), (2462, 27490), (2749, 24620), (4924, 13745), (5498, 12310), (6155, 10996)]