18779690

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{5381}}^1$

素因数の和:5737

約数の個数: 16

約数和(自身を含む): 33906600

約数和(自身を除く): 15126910

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 5381, 10762, 26905, 53810, 1877969, 3755938, 9389845, 18779690]

約数ペア:

[(1, 18779690), (2, 9389845), (5, 3755938), (10, 1877969), (349, 53810), (698, 26905), (1745, 10762), (3490, 5381)]