80640427

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2341}}^1$

素因数の和:2411

約数の個数: 24

約数和(自身を含む): 101455440

約数和(自身を除く): 20815013

約数列:

[1, 7, 19, 37, 49, 133, 259, 703, 931, 1813, 2341, 4921, 16387, 34447, 44479, 86617, 114709, 311353, 606319, 1645723, 2179471, 4244233, 11520061, 80640427]

約数ペア:

[(1, 80640427), (7, 11520061), (19, 4244233), (37, 2179471), (49, 1645723), (133, 606319), (259, 311353), (703, 114709), (931, 86617), (1813, 44479), (2341, 34447), (4921, 16387)]