199984868

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{393671}}^1$

素因数の和:393802

約数の個数: 12

約数和(自身を含む): 352730112

約数和(自身を除く): 152745244

約数列:

[1, 2, 4, 127, 254, 508, 393671, 787342, 1574684, 49996217, 99992434, 199984868]

約数ペア:

[(1, 199984868), (2, 99992434), (4, 49996217), (127, 1574684), (254, 787342), (508, 393671)]