28009895

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9511}}^1$

素因数の和:9566

約数の個数: 16

約数和(自身を含む): 36526080

約数和(自身を除く): 8516185

約数列:

[1, 5, 19, 31, 95, 155, 589, 2945, 9511, 47555, 180709, 294841, 903545, 1474205, 5601979, 28009895]

約数ペア:

[(1, 28009895), (5, 5601979), (19, 1474205), (31, 903545), (95, 294841), (155, 180709), (589, 47555), (2945, 9511)]