128834680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{247759}}^1$

素因数の和:247783

約数の個数: 32

約数和(自身を含む): 312177600

約数和(自身を除く): 183342920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 247759, 495518, 991036, 1238795, 1982072, 2477590, 3220867, 4955180, 6441734, 9910360, 12883468, 16104335, 25766936, 32208670, 64417340, 128834680]

約数ペア:

[(1, 128834680), (2, 64417340), (4, 32208670), (5, 25766936), (8, 16104335), (10, 12883468), (13, 9910360), (20, 6441734), (26, 4955180), (40, 3220867), (52, 2477590), (65, 1982072), (104, 1238795), (130, 991036), (260, 495518), (520, 247759)]