257991384

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{1535663}}^1$

素因数の和:1535679

約数の個数: 32

約数和(自身を含む): 737118720

約数和(自身を除く): 479127336

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 1535663, 3071326, 4606989, 6142652, 9213978, 10749641, 12285304, 18427956, 21499282, 32248923, 36855912, 42998564, 64497846, 85997128, 128995692, 257991384]

約数ペア:

[(1, 257991384), (2, 128995692), (3, 85997128), (4, 64497846), (6, 42998564), (7, 36855912), (8, 32248923), (12, 21499282), (14, 18427956), (21, 12285304), (24, 10749641), (28, 9213978), (42, 6142652), (56, 4606989), (84, 3071326), (168, 1535663)]