1320865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2903}}^1$

素因数の和:2928

約数の個数: 16

約数和(自身を含む): 1951488

約数和(自身を除く): 630623

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 2903, 14515, 20321, 37739, 101605, 188695, 264173, 1320865]

約数ペア:

[(1, 1320865), (5, 264173), (7, 188695), (13, 101605), (35, 37739), (65, 20321), (91, 14515), (455, 2903)]