31568728

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{643}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 66248280

約数和(自身を除く): 34679552

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 361, 643, 646, 722, 1286, 1292, 1444, 2572, 2584, 2888, 5144, 6137, 10931, 12217, 12274, 21862, 24434, 24548, 43724, 48868, 49096, 87448, 97736, 207689, 232123, 415378, 464246, 830756, 928492, 1661512, 1856984, 3946091, 7892182, 15784364, 31568728]

約数ペア:

[(1, 31568728), (2, 15784364), (4, 7892182), (8, 3946091), (17, 1856984), (19, 1661512), (34, 928492), (38, 830756), (68, 464246), (76, 415378), (136, 232123), (152, 207689), (323, 97736), (361, 87448), (643, 49096), (646, 48868), (722, 43724), (1286, 24548), (1292, 24434), (1444, 21862), (2572, 12274), (2584, 12217), (2888, 10931), (5144, 6137)]