127899025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2089}}^1$

素因数の和:2209

約数の個数: 24

約数和(自身を含む): 165862400

約数和(自身を除く): 37963375

約数列:

[1, 5, 25, 31, 79, 155, 395, 775, 1975, 2089, 2449, 10445, 12245, 52225, 61225, 64759, 165031, 323795, 825155, 1618975, 4125775, 5115961, 25579805, 127899025]

約数ペア:

[(1, 127899025), (5, 25579805), (25, 5115961), (31, 4125775), (79, 1618975), (155, 825155), (395, 323795), (775, 165031), (1975, 64759), (2089, 61225), (2449, 52225), (10445, 12245)]