68559281

素因数分解:

$7^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 82080000

約数和(自身を除く): 13520719

約数列:

[1, 7, 49, 79, 89, 199, 553, 623, 1393, 3871, 4361, 7031, 9751, 15721, 17711, 49217, 110047, 123977, 344519, 770329, 867839, 1399169, 9794183, 68559281]

約数ペア:

[(1, 68559281), (7, 9794183), (49, 1399169), (79, 867839), (89, 770329), (199, 344519), (553, 123977), (623, 110047), (1393, 49217), (3871, 17711), (4361, 15721), (7031, 9751)]