20173089980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9253711}}^1$

素因数の和:9253829

約数の個数: 24

約数和(自身を含む): 42752149440

約数和(自身を除く): 22579059460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9253711, 18507422, 37014844, 46268555, 92537110, 185074220, 1008654499, 2017308998, 4034617996, 5043272495, 10086544990, 20173089980]

約数ペア:

[(1, 20173089980), (2, 10086544990), (4, 5043272495), (5, 4034617996), (10, 2017308998), (20, 1008654499), (109, 185074220), (218, 92537110), (436, 46268555), (545, 37014844), (1090, 18507422), (2180, 9253711)]