19902590

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86533}}^1$

素因数の和:86563

約数の個数: 16

約数和(自身を含む): 37382688

約数和(自身を除く): 17480098

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86533, 173066, 432665, 865330, 1990259, 3980518, 9951295, 19902590]

約数ペア:

[(1, 19902590), (2, 9951295), (5, 3980518), (10, 1990259), (23, 865330), (46, 432665), (115, 173066), (230, 86533)]