87981305

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{4153}}^1$

素因数の和:4400

約数の個数: 16

約数和(自身を含む): 111659520

約数和(自身を除く): 23678215

約数列:

[1, 5, 19, 95, 223, 1115, 4153, 4237, 20765, 21185, 78907, 394535, 926119, 4630595, 17596261, 87981305]

約数ペア:

[(1, 87981305), (5, 17596261), (19, 4630595), (95, 926119), (223, 394535), (1115, 78907), (4153, 21185), (4237, 20765)]