51138025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 67208000

約数和(自身を除く): 16069975

約数列:

[1, 5, 19, 25, 95, 199, 475, 541, 995, 2705, 3781, 4975, 10279, 13525, 18905, 51395, 94525, 107659, 256975, 538295, 2045521, 2691475, 10227605, 51138025]

約数ペア:

[(1, 51138025), (5, 10227605), (19, 2691475), (25, 2045521), (95, 538295), (199, 256975), (475, 107659), (541, 94525), (995, 51395), (2705, 18905), (3781, 13525), (4975, 10279)]