20161880

素因数分解:

$2^3\times 5^1\times {\mathrm{504047}}^1$

素因数の和:504058

約数の個数: 16

約数和(自身を含む): 45364320

約数和(自身を除く): 25202440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504047, 1008094, 2016188, 2520235, 4032376, 5040470, 10080940, 20161880]

約数ペア:

[(1, 20161880), (2, 10080940), (4, 5040470), (5, 4032376), (8, 2520235), (10, 2016188), (20, 1008094), (40, 504047)]