81512649

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 129729600

約数和(自身を除く): 48216951

約数列:

[1, 3, 9, 27, 29, 43, 81, 87, 129, 243, 261, 269, 387, 783, 807, 1161, 1247, 2349, 2421, 3483, 3741, 7047, 7263, 7801, 10449, 11223, 11567, 21789, 23403, 33669, 34701, 65367, 70209, 101007, 104103, 210627, 303021, 312309, 335443, 631881, 936927, 1006329, 1895643, 2810781, 3018987, 9056961, 27170883, 81512649]

約数ペア:

[(1, 81512649), (3, 27170883), (9, 9056961), (27, 3018987), (29, 2810781), (43, 1895643), (81, 1006329), (87, 936927), (129, 631881), (243, 335443), (261, 312309), (269, 303021), (387, 210627), (783, 104103), (807, 101007), (1161, 70209), (1247, 65367), (2349, 34701), (2421, 33669), (3483, 23403), (3741, 21789), (7047, 11567), (7263, 11223), (7801, 10449)]