20686060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54437}}^1$

素因数の和:54465

約数の個数: 24

約数和(自身を含む): 45727920

約数和(自身を除く): 25041860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54437, 108874, 217748, 272185, 544370, 1034303, 1088740, 2068606, 4137212, 5171515, 10343030, 20686060]

約数ペア:

[(1, 20686060), (2, 10343030), (4, 5171515), (5, 4137212), (10, 2068606), (19, 1088740), (20, 1034303), (38, 544370), (76, 272185), (95, 217748), (190, 108874), (380, 54437)]