7890991615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{616243}}^1$

素因数の和:616458

約数の個数: 16

約数和(自身を含む): 10249370208

約数和(自身を除く): 2358378593

約数列:

[1, 5, 13, 65, 197, 985, 2561, 12805, 616243, 3081215, 8011159, 40055795, 121399871, 606999355, 1578198323, 7890991615]

約数ペア:

[(1, 7890991615), (5, 1578198323), (13, 606999355), (65, 121399871), (197, 40055795), (985, 8011159), (2561, 3081215), (12805, 616243)]