55128025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6827}}^1$

素因数の和:6873

約数の個数: 24

約数和(自身を含む): 76200480

約数和(自身を除く): 21072455

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 6827, 8075, 34135, 116059, 129713, 170675, 580295, 648565, 2205121, 2901475, 3242825, 11025605, 55128025]

約数ペア:

[(1, 55128025), (5, 11025605), (17, 3242825), (19, 2901475), (25, 2205121), (85, 648565), (95, 580295), (323, 170675), (425, 129713), (475, 116059), (1615, 34135), (6827, 8075)]