80248940

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{7883}}^1$

素因数の和:8401

約数の個数: 24

約数和(自身を含む): 168875280

約数和(自身を除く): 88626340

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 5090, 7883, 10180, 15766, 31532, 39415, 78830, 157660, 4012447, 8024894, 16049788, 20062235, 40124470, 80248940]

約数ペア:

[(1, 80248940), (2, 40124470), (4, 20062235), (5, 16049788), (10, 8024894), (20, 4012447), (509, 157660), (1018, 78830), (2036, 39415), (2545, 31532), (5090, 15766), (7883, 10180)]