20178036940

素因数分解:

$2^2\times 5^1\times {\mathrm{2549}}^1\times {\mathrm{395803}}^1$

素因数の和:398361

約数の個数: 24

約数和(自身を含む): 42390608400

約数和(自身を除く): 22212571460

約数列:

[1, 2, 4, 5, 10, 20, 2549, 5098, 10196, 12745, 25490, 50980, 395803, 791606, 1583212, 1979015, 3958030, 7916060, 1008901847, 2017803694, 4035607388, 5044509235, 10089018470, 20178036940]

約数ペア:

[(1, 20178036940), (2, 10089018470), (4, 5044509235), (5, 4035607388), (10, 2017803694), (20, 1008901847), (2549, 7916060), (5098, 3958030), (10196, 1979015), (12745, 1583212), (25490, 791606), (50980, 395803)]