About the Number

81679872

81679871 ← → 81679873

2進数表記:100110111100101011000000000

漢数字表記:八千百六十七万九千八百七十二

素因数分解:

2 9 × 3 1 × 41 1 × 1297 1

素因数の和:1359
約数の個数: 80
約数和(自身を含む): 223079472
約数和(自身を除く): 141399600

約数列:
[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 82, 96, 123, 128, 164, 192, 246, 256, 328, 384, 492, 512, 656, 768, 984, 1297, 1312, 1536, 1968, 2594, 2624, 3891, 3936, 5188, 5248, 7782, 7872, 10376, 10496, 15564, 15744, 20752, 20992, 31128, 31488, 41504, 53177, 62256, 62976, 83008, 106354, 124512, 159531, 166016, 212708, 249024, 319062, 332032, 425416, 498048, 638124, 664064, 850832, 996096, 1276248, 1701664, 1992192, 2552496, 3403328, 5104992, 6806656, 10209984, 13613312, 20419968, 27226624, 40839936, 81679872]

約数ペア:
[(1, 81679872), (2, 40839936), (3, 27226624), (4, 20419968), (6, 13613312), (8, 10209984), (12, 6806656), (16, 5104992), (24, 3403328), (32, 2552496), (41, 1992192), (48, 1701664), (64, 1276248), (82, 996096), (96, 850832), (123, 664064), (128, 638124), (164, 498048), (192, 425416), (246, 332032), (256, 319062), (328, 249024), (384, 212708), (492, 166016), (512, 159531), (656, 124512), (768, 106354), (984, 83008), (1297, 62976), (1312, 62256), (1536, 53177), (1968, 41504), (2594, 31488), (2624, 31128), (3891, 20992), (3936, 20752), (5188, 15744), (5248, 15564), (7782, 10496), (7872, 10376)]

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