About the Number

81215232

81215231 ← → 81215233

2進数表記:100110101110011111100000000

漢数字表記:八千百二十一万五千二百三十二

素因数分解:

2 8 × 3 1 × 7 1 × 15107 1

素因数の和:15133
約数の個数: 72
約数和(自身を含む): 247046016
約数和(自身を除く): 165830784

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 672, 768, 896, 1344, 1792, 2688, 5376, 15107, 30214, 45321, 60428, 90642, 105749, 120856, 181284, 211498, 241712, 317247, 362568, 422996, 483424, 634494, 725136, 845992, 966848, 1268988, 1450272, 1691984, 1933696, 2537976, 2900544, 3383968, 3867392, 5075952, 5801088, 6767936, 10151904, 11602176, 13535872, 20303808, 27071744, 40607616, 81215232]

約数ペア:
[(1, 81215232), (2, 40607616), (3, 27071744), (4, 20303808), (6, 13535872), (7, 11602176), (8, 10151904), (12, 6767936), (14, 5801088), (16, 5075952), (21, 3867392), (24, 3383968), (28, 2900544), (32, 2537976), (42, 1933696), (48, 1691984), (56, 1450272), (64, 1268988), (84, 966848), (96, 845992), (112, 725136), (128, 634494), (168, 483424), (192, 422996), (224, 362568), (256, 317247), (336, 241712), (384, 211498), (448, 181284), (672, 120856), (768, 105749), (896, 90642), (1344, 60428), (1792, 45321), (2688, 30214), (5376, 15107)]

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