20397010

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25819}}^1$

素因数の和:25905

約数の個数: 16

約数和(自身を含む): 37180800

約数和(自身を除く): 16783790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25819, 51638, 129095, 258190, 2039701, 4079402, 10198505, 20397010]

約数ペア:

[(1, 20397010), (2, 10198505), (5, 4079402), (10, 2039701), (79, 258190), (158, 129095), (395, 51638), (790, 25819)]