20298380

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13903}}^1$

素因数の和:13985

約数の個数: 24

約数和(自身を含む): 43213632

約数和(自身を除く): 22915252

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13903, 27806, 55612, 69515, 139030, 278060, 1014919, 2029838, 4059676, 5074595, 10149190, 20298380]

約数ペア:

[(1, 20298380), (2, 10149190), (4, 5074595), (5, 4059676), (10, 2029838), (20, 1014919), (73, 278060), (146, 139030), (292, 69515), (365, 55612), (730, 27806), (1460, 13903)]