About the Number

2485840

2485839 ← → 2485841

2進数表記:1001011110111001010000

漢数字表記:二百四十八万五千八百四十

素因数分解:

2 4 × 5 1 × 7 1 × 23 1 × 193 1

素因数の和:236
約数の個数: 80
約数和(自身を含む): 6928128
約数和(自身を除く): 4442288

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 193, 230, 280, 322, 368, 386, 460, 560, 644, 772, 805, 920, 965, 1288, 1351, 1544, 1610, 1840, 1930, 2576, 2702, 3088, 3220, 3860, 4439, 5404, 6440, 6755, 7720, 8878, 10808, 12880, 13510, 15440, 17756, 21616, 22195, 27020, 31073, 35512, 44390, 54040, 62146, 71024, 88780, 108080, 124292, 155365, 177560, 248584, 310730, 355120, 497168, 621460, 1242920, 2485840]

約数ペア:
[(1, 2485840), (2, 1242920), (4, 621460), (5, 497168), (7, 355120), (8, 310730), (10, 248584), (14, 177560), (16, 155365), (20, 124292), (23, 108080), (28, 88780), (35, 71024), (40, 62146), (46, 54040), (56, 44390), (70, 35512), (80, 31073), (92, 27020), (112, 22195), (115, 21616), (140, 17756), (161, 15440), (184, 13510), (193, 12880), (230, 10808), (280, 8878), (322, 7720), (368, 6755), (386, 6440), (460, 5404), (560, 4439), (644, 3860), (772, 3220), (805, 3088), (920, 2702), (965, 2576), (1288, 1930), (1351, 1840), (1544, 1610)]

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