20298580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23603}}^1$

素因数の和:23655

約数の個数: 24

約数和(自身を含む): 43620192

約数和(自身を除く): 23321612

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23603, 47206, 94412, 118015, 236030, 472060, 1014929, 2029858, 4059716, 5074645, 10149290, 20298580]

約数ペア:

[(1, 20298580), (2, 10149290), (4, 5074645), (5, 4059716), (10, 2029858), (20, 1014929), (43, 472060), (86, 236030), (172, 118015), (215, 94412), (430, 47206), (860, 23603)]