20485180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44533}}^1$

素因数の和:44565

約数の個数: 24

約数和(自身を含む): 44890272

約数和(自身を除く): 24405092

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44533, 89066, 178132, 222665, 445330, 890660, 1024259, 2048518, 4097036, 5121295, 10242590, 20485180]

約数ペア:

[(1, 20485180), (2, 10242590), (4, 5121295), (5, 4097036), (10, 2048518), (20, 1024259), (23, 890660), (46, 445330), (92, 222665), (115, 178132), (230, 89066), (460, 44533)]