289452488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{20023}}^1$

素因数の和:20181

約数の個数: 32

約数和(自身を含む): 588705600

約数和(自身を除く): 299253112

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1807, 3614, 7228, 14456, 20023, 40046, 80092, 160184, 260299, 520598, 1041196, 2082392, 2783197, 5566394, 11132788, 22265576, 36181561, 72363122, 144726244, 289452488]

約数ペア:

[(1, 289452488), (2, 144726244), (4, 72363122), (8, 36181561), (13, 22265576), (26, 11132788), (52, 5566394), (104, 2783197), (139, 2082392), (278, 1041196), (556, 520598), (1112, 260299), (1807, 160184), (3614, 80092), (7228, 40046), (14456, 20023)]