80647628

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{4129}}^1$

素因数の和:4409

約数の個数: 24

約数和(自身を含む): 149175600

約数和(自身を除く): 68527972

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 1028, 4129, 4883, 8258, 9766, 16516, 19532, 78451, 156902, 313804, 1061153, 2122306, 4244612, 20161907, 40323814, 80647628]

約数ペア:

[(1, 80647628), (2, 40323814), (4, 20161907), (19, 4244612), (38, 2122306), (76, 1061153), (257, 313804), (514, 156902), (1028, 78451), (4129, 19532), (4883, 16516), (8258, 9766)]