39971980

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{15737}}^1$

素因数の和:15873

約数の個数: 24

約数和(自身を含む): 84607488

約数和(自身を除く): 44635508

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 15737, 31474, 62948, 78685, 157370, 314740, 1998599, 3997198, 7994396, 9992995, 19985990, 39971980]

約数ペア:

[(1, 39971980), (2, 19985990), (4, 9992995), (5, 7994396), (10, 3997198), (20, 1998599), (127, 314740), (254, 157370), (508, 78685), (635, 62948), (1270, 31474), (2540, 15737)]