81187496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{780649}}^1$

素因数の和:780668

約数の個数: 16

約数和(自身を含む): 163936500

約数和(自身を除く): 82749004

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 780649, 1561298, 3122596, 6245192, 10148437, 20296874, 40593748, 81187496]

約数ペア:

[(1, 81187496), (2, 40593748), (4, 20296874), (8, 10148437), (13, 6245192), (26, 3122596), (52, 1561298), (104, 780649)]