290124289

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{433}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 369420800

約数和(自身を除く): 79296511

約数列:

[1, 7, 13, 37, 91, 199, 259, 433, 481, 1393, 2587, 3031, 3367, 5629, 7363, 16021, 18109, 39403, 51541, 86167, 95719, 112147, 208273, 603169, 670033, 1120171, 1457911, 3188179, 7841197, 22317253, 41446327, 290124289]

約数ペア:

[(1, 290124289), (7, 41446327), (13, 22317253), (37, 7841197), (91, 3188179), (199, 1457911), (259, 1120171), (433, 670033), (481, 603169), (1393, 208273), (2587, 112147), (3031, 95719), (3367, 86167), (5629, 51541), (7363, 39403), (16021, 18109)]