80442280

素因数分解:

$2^3\times 5^1\times {\mathrm{2011057}}^1$

素因数の和:2011068

約数の個数: 16

約数和(自身を含む): 180995220

約数和(自身を除く): 100552940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2011057, 4022114, 8044228, 10055285, 16088456, 20110570, 40221140, 80442280]

約数ペア:

[(1, 80442280), (2, 40221140), (4, 20110570), (5, 16088456), (8, 10055285), (10, 8044228), (20, 4022114), (40, 2011057)]