128514256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{617857}}^1$

素因数の和:617878

約数の個数: 20

約数和(自身を含む): 268150372

約数和(自身を除く): 139636116

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 617857, 1235714, 2471428, 4942856, 8032141, 9885712, 16064282, 32128564, 64257128, 128514256]

約数ペア:

[(1, 128514256), (2, 64257128), (4, 32128564), (8, 16064282), (13, 9885712), (16, 8032141), (26, 4942856), (52, 2471428), (104, 1235714), (208, 617857)]