27840025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 35794584

約数和(自身を除く): 7954559

約数列:

[1, 5, 25, 41, 157, 173, 205, 785, 865, 1025, 3925, 4325, 6437, 7093, 27161, 32185, 35465, 135805, 160925, 177325, 679025, 1113601, 5568005, 27840025]

約数ペア:

[(1, 27840025), (5, 5568005), (25, 1113601), (41, 679025), (157, 177325), (173, 160925), (205, 135805), (785, 35465), (865, 32185), (1025, 27161), (3925, 7093), (4325, 6437)]