20187940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27281}}^1$

素因数の和:27327

約数の個数: 24

約数和(自身を含む): 43542072

約数和(自身を除く): 23354132

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27281, 54562, 109124, 136405, 272810, 545620, 1009397, 2018794, 4037588, 5046985, 10093970, 20187940]

約数ペア:

[(1, 20187940), (2, 10093970), (4, 5046985), (5, 4037588), (10, 2018794), (20, 1009397), (37, 545620), (74, 272810), (148, 136405), (185, 109124), (370, 54562), (740, 27281)]