20187320

素因数分解:

$2^3\times 5^1\times {\mathrm{504683}}^1$

素因数の和:504694

約数の個数: 16

約数和(自身を含む): 45421560

約数和(自身を除く): 25234240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504683, 1009366, 2018732, 2523415, 4037464, 5046830, 10093660, 20187320]

約数ペア:

[(1, 20187320), (2, 10093660), (4, 5046830), (5, 4037464), (8, 2523415), (10, 2018732), (20, 1009366), (40, 504683)]