8920015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1259}}^1$

素因数の和:1386

約数の個数: 16

約数和(自身を含む): 11642400

約数和(自身を除く): 2722385

約数列:

[1, 5, 13, 65, 109, 545, 1259, 1417, 6295, 7085, 16367, 81835, 137231, 686155, 1784003, 8920015]

約数ペア:

[(1, 8920015), (5, 1784003), (13, 686155), (65, 137231), (109, 81835), (545, 16367), (1259, 7085), (1417, 6295)]