20047945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{751}}^1$

素因数の和:1056

約数の個数: 16

約数和(自身を含む): 25447680

約数和(自身を除く): 5399735

約数列:

[1, 5, 19, 95, 281, 751, 1405, 3755, 5339, 14269, 26695, 71345, 211031, 1055155, 4009589, 20047945]

約数ペア:

[(1, 20047945), (5, 4009589), (19, 1055155), (95, 211031), (281, 71345), (751, 26695), (1405, 14269), (3755, 5339)]