87989945

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{4201}}^1$

素因数の和:4336

約数の個数: 16

約数和(自身を含む): 108915840

約数和(自身を除く): 20925895

約数列:

[1, 5, 59, 71, 295, 355, 4189, 4201, 20945, 21005, 247859, 298271, 1239295, 1491355, 17597989, 87989945]

約数ペア:

[(1, 87989945), (5, 17597989), (59, 1491355), (71, 1239295), (295, 298271), (355, 247859), (4189, 21005), (4201, 20945)]