289997266

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1663}}^1$

素因数の和:2050

約数の個数: 32

約数和(自身を含む): 494807040

約数和(自身を除く): 204809774

約数列:

[1, 2, 13, 19, 26, 38, 247, 353, 494, 706, 1663, 3326, 4589, 6707, 9178, 13414, 21619, 31597, 43238, 63194, 87191, 174382, 410761, 587039, 821522, 1174078, 7631507, 11153741, 15263014, 22307482, 144998633, 289997266]

約数ペア:

[(1, 289997266), (2, 144998633), (13, 22307482), (19, 15263014), (26, 11153741), (38, 7631507), (247, 1174078), (353, 821522), (494, 587039), (706, 410761), (1663, 174382), (3326, 87191), (4589, 63194), (6707, 43238), (9178, 31597), (13414, 21619)]