28656280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5641}}^1$

素因数の和:5779

約数の個数: 32

約数和(自身を含む): 64995840

約数和(自身を除く): 36339560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 5641, 11282, 22564, 28205, 45128, 56410, 112820, 225640, 716407, 1432814, 2865628, 3582035, 5731256, 7164070, 14328140, 28656280]

約数ペア:

[(1, 28656280), (2, 14328140), (4, 7164070), (5, 5731256), (8, 3582035), (10, 2865628), (20, 1432814), (40, 716407), (127, 225640), (254, 112820), (508, 56410), (635, 45128), (1016, 28205), (1270, 22564), (2540, 11282), (5080, 5641)]