290278079

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2393}}^1$

素因数の和:2487

約数の個数: 32

約数和(自身を含む): 377524224

約数和(自身を除く): 87246145

約数列:

[1, 7, 13, 31, 43, 91, 217, 301, 403, 559, 1333, 2393, 2821, 3913, 9331, 16751, 17329, 31109, 74183, 102899, 121303, 217763, 519281, 720293, 964379, 1337687, 3189869, 6750653, 9363809, 22329083, 41468297, 290278079]

約数ペア:

[(1, 290278079), (7, 41468297), (13, 22329083), (31, 9363809), (43, 6750653), (91, 3189869), (217, 1337687), (301, 964379), (403, 720293), (559, 519281), (1333, 217763), (2393, 121303), (2821, 102899), (3913, 74183), (9331, 31109), (16751, 17329)]