20440865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2089}}^1$

素因数の和:2216

約数の個数: 16

約数和(自身を含む): 26083200

約数和(自身を除く): 5642335

約数列:

[1, 5, 19, 95, 103, 515, 1957, 2089, 9785, 10445, 39691, 198455, 215167, 1075835, 4088173, 20440865]

約数ペア:

[(1, 20440865), (5, 4088173), (19, 1075835), (95, 215167), (103, 198455), (515, 39691), (1957, 10445), (2089, 9785)]