78409580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{206341}}^1$

素因数の和:206369

約数の個数: 24

約数和(自身を含む): 173327280

約数和(自身を除く): 94917700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 206341, 412682, 825364, 1031705, 2063410, 3920479, 4126820, 7840958, 15681916, 19602395, 39204790, 78409580]

約数ペア:

[(1, 78409580), (2, 39204790), (4, 19602395), (5, 15681916), (10, 7840958), (19, 4126820), (20, 3920479), (38, 2063410), (76, 1031705), (95, 825364), (190, 412682), (380, 206341)]