28624660

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5569}}^1$

素因数の和:5835

約数の個数: 24

約数和(自身を含む): 60356520

約数和(自身を除く): 31731860

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 5569, 11138, 22276, 27845, 55690, 111380, 1431233, 2862466, 5724932, 7156165, 14312330, 28624660]

約数ペア:

[(1, 28624660), (2, 14312330), (4, 7156165), (5, 5724932), (10, 2862466), (20, 1431233), (257, 111380), (514, 55690), (1028, 27845), (1285, 22276), (2570, 11138), (5140, 5569)]