28766860

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{5347}}^1$

素因数の和:5625

約数の個数: 24

約数和(自身を含む): 60646320

約数和(自身を除く): 31879460

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5347, 5380, 10694, 21388, 26735, 53470, 106940, 1438343, 2876686, 5753372, 7191715, 14383430, 28766860]

約数ペア:

[(1, 28766860), (2, 14383430), (4, 7191715), (5, 5753372), (10, 2876686), (20, 1438343), (269, 106940), (538, 53470), (1076, 26735), (1345, 21388), (2690, 10694), (5347, 5380)]