256553668

素因数分解:

$2^2\times 7^1\times {\mathrm{1759}}^1\times {\mathrm{5209}}^1$

素因数の和:6979

約数の個数: 24

約数和(自身を含む): 513497600

約数和(自身を除く): 256943932

約数列:

[1, 2, 4, 7, 14, 28, 1759, 3518, 5209, 7036, 10418, 12313, 20836, 24626, 36463, 49252, 72926, 145852, 9162631, 18325262, 36650524, 64138417, 128276834, 256553668]

約数ペア:

[(1, 256553668), (2, 128276834), (4, 64138417), (7, 36650524), (14, 18325262), (28, 9162631), (1759, 145852), (3518, 72926), (5209, 49252), (7036, 36463), (10418, 24626), (12313, 20836)]