251536

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:286

約数の個数: 20

約数和(自身を含む): 496000

約数和(自身を除く): 244464

約数列:

[1, 2, 4, 8, 16, 79, 158, 199, 316, 398, 632, 796, 1264, 1592, 3184, 15721, 31442, 62884, 125768, 251536]

約数ペア:

[(1, 251536), (2, 125768), (4, 62884), (8, 31442), (16, 15721), (79, 3184), (158, 1592), (199, 1264), (316, 796), (398, 632)]