20784695

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{349}}^1$

素因数の和:674

約数の個数: 16

約数和(自身を含む): 25687200

約数和(自身を除く): 4902505

約数列:

[1, 5, 43, 215, 277, 349, 1385, 1745, 11911, 15007, 59555, 75035, 96673, 483365, 4156939, 20784695]

約数ペア:

[(1, 20784695), (5, 4156939), (43, 483365), (215, 96673), (277, 75035), (349, 59555), (1385, 15007), (1745, 11911)]