680000008

素因数分解:

$2^3\times {\mathrm{389}}^1\times {\mathrm{218509}}^1$

素因数の和:218904

約数の個数: 16

約数和(自身を含む): 1278283500

約数和(自身を除く): 598283492

約数列:

[1, 2, 4, 8, 389, 778, 1556, 3112, 218509, 437018, 874036, 1748072, 85000001, 170000002, 340000004, 680000008]

約数ペア:

[(1, 680000008), (2, 340000004), (4, 170000002), (8, 85000001), (389, 1748072), (778, 874036), (1556, 437018), (3112, 218509)]