80208025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1289}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 105573600

約数和(自身を除く): 25365575

約数列:

[1, 5, 19, 25, 95, 131, 475, 655, 1289, 2489, 3275, 6445, 12445, 24491, 32225, 62225, 122455, 168859, 612275, 844295, 3208321, 4221475, 16041605, 80208025]

約数ペア:

[(1, 80208025), (5, 16041605), (19, 4221475), (25, 3208321), (95, 844295), (131, 612275), (475, 168859), (655, 122455), (1289, 62225), (2489, 32225), (3275, 24491), (6445, 12445)]