20865085

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{523}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 25655040

約数和(自身を除く): 4789955

約数列:

[1, 5, 79, 101, 395, 505, 523, 2615, 7979, 39895, 41317, 52823, 206585, 264115, 4173017, 20865085]

約数ペア:

[(1, 20865085), (5, 4173017), (79, 264115), (101, 206585), (395, 52823), (505, 41317), (523, 39895), (2615, 7979)]