20280940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44089}}^1$

素因数の和:44121

約数の個数: 24

約数和(自身を含む): 44442720

約数和(自身を除く): 24161780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44089, 88178, 176356, 220445, 440890, 881780, 1014047, 2028094, 4056188, 5070235, 10140470, 20280940]

約数ペア:

[(1, 20280940), (2, 10140470), (4, 5070235), (5, 4056188), (10, 2028094), (20, 1014047), (23, 881780), (46, 440890), (92, 220445), (115, 176356), (230, 88178), (460, 44089)]