31779305

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{199}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 41352000

約数和(自身を除く): 9572695

約数列:

[1, 5, 19, 41, 95, 199, 205, 779, 995, 1681, 3781, 3895, 8159, 8405, 18905, 31939, 40795, 155021, 159695, 334519, 775105, 1672595, 6355861, 31779305]

約数ペア:

[(1, 31779305), (5, 6355861), (19, 1672595), (41, 775105), (95, 334519), (199, 159695), (205, 155021), (779, 40795), (995, 31939), (1681, 18905), (3781, 8405), (3895, 8159)]