81786925

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1474

約数の個数: 36

約数和(自身を含む): 117423040

約数和(自身を除く): 35636115

約数列:

[1, 5, 11, 19, 25, 55, 95, 121, 209, 275, 475, 605, 1045, 1423, 2299, 3025, 5225, 7115, 11495, 15653, 27037, 35575, 57475, 78265, 135185, 172183, 297407, 391325, 675925, 860915, 1487035, 3271477, 4304575, 7435175, 16357385, 81786925]

約数ペア:

[(1, 81786925), (5, 16357385), (11, 7435175), (19, 4304575), (25, 3271477), (55, 1487035), (95, 860915), (121, 675925), (209, 391325), (275, 297407), (475, 172183), (605, 135185), (1045, 78265), (1423, 57475), (2299, 35575), (3025, 27037), (5225, 15653), (7115, 11495)]