1388431385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{941}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 1842099840

約数和(自身を除く): 453668455

約数列:

[1, 5, 11, 55, 139, 193, 695, 941, 965, 1529, 2123, 4705, 7645, 10351, 10615, 26827, 51755, 130799, 134135, 181613, 295097, 653995, 908065, 1438789, 1475485, 1997743, 7193945, 9988715, 25244207, 126221035, 277686277, 1388431385]

約数ペア:

[(1, 1388431385), (5, 277686277), (11, 126221035), (55, 25244207), (139, 9988715), (193, 7193945), (695, 1997743), (941, 1475485), (965, 1438789), (1529, 908065), (2123, 653995), (4705, 295097), (7645, 181613), (10351, 134135), (10615, 130799), (26827, 51755)]