257781456

素因数分解:

$2^4\times 3^2\times {\mathrm{1790149}}^1$

素因数の和:1790163

約数の個数: 30

約数和(自身を含む): 721430450

約数和(自身を除く): 463648994

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 1790149, 3580298, 5370447, 7160596, 10740894, 14321192, 16111341, 21481788, 28642384, 32222682, 42963576, 64445364, 85927152, 128890728, 257781456]

約数ペア:

[(1, 257781456), (2, 128890728), (3, 85927152), (4, 64445364), (6, 42963576), (8, 32222682), (9, 28642384), (12, 21481788), (16, 16111341), (18, 14321192), (24, 10740894), (36, 7160596), (48, 5370447), (72, 3580298), (144, 1790149)]