28381778

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{2459}}^1$

素因数の和:2689

約数の個数: 16

約数和(自身を含む): 44280000

約数和(自身を除く): 15898222

約数列:

[1, 2, 29, 58, 199, 398, 2459, 4918, 5771, 11542, 71311, 142622, 489341, 978682, 14190889, 28381778]

約数ペア:

[(1, 28381778), (2, 14190889), (29, 978682), (58, 489341), (199, 142622), (398, 71311), (2459, 11542), (4918, 5771)]