20081288005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{7129}}^1$

素因数の和:7501

約数の個数: 32

約数和(自身を含む): 25668000000

約数和(自身を除く): 5586711995

約数列:

[1, 5, 19, 95, 149, 199, 745, 995, 2831, 3781, 7129, 14155, 18905, 29651, 35645, 135451, 148255, 563369, 677255, 1062221, 1418671, 2816845, 5311105, 7093355, 20182199, 26954749, 100910995, 134773745, 211381979, 1056909895, 4016257601, 20081288005]

約数ペア:

[(1, 20081288005), (5, 4016257601), (19, 1056909895), (95, 211381979), (149, 134773745), (199, 100910995), (745, 26954749), (995, 20182199), (2831, 7093355), (3781, 5311105), (7129, 2816845), (14155, 1418671), (18905, 1062221), (29651, 677255), (35645, 563369), (135451, 148255)]