257786784

素因数分解:

$2^5\times 3^2\times {\mathrm{491}}^1\times {\mathrm{1823}}^1$

素因数の和:2330

約数の個数: 72

約数和(自身を含む): 734977152

約数和(自身を除く): 477190368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 491, 982, 1473, 1823, 1964, 2946, 3646, 3928, 4419, 5469, 5892, 7292, 7856, 8838, 10938, 11784, 14584, 15712, 16407, 17676, 21876, 23568, 29168, 32814, 35352, 43752, 47136, 58336, 65628, 70704, 87504, 131256, 141408, 175008, 262512, 525024, 895093, 1790186, 2685279, 3580372, 5370558, 7160744, 8055837, 10741116, 14321488, 16111674, 21482232, 28642976, 32223348, 42964464, 64446696, 85928928, 128893392, 257786784]

約数ペア:

[(1, 257786784), (2, 128893392), (3, 85928928), (4, 64446696), (6, 42964464), (8, 32223348), (9, 28642976), (12, 21482232), (16, 16111674), (18, 14321488), (24, 10741116), (32, 8055837), (36, 7160744), (48, 5370558), (72, 3580372), (96, 2685279), (144, 1790186), (288, 895093), (491, 525024), (982, 262512), (1473, 175008), (1823, 141408), (1964, 131256), (2946, 87504), (3646, 70704), (3928, 65628), (4419, 58336), (5469, 47136), (5892, 43752), (7292, 35352), (7856, 32814), (8838, 29168), (10938, 23568), (11784, 21876), (14584, 17676), (15712, 16407)]