About the Number

207181408

207181407 ← → 207181409

2進数表記:1100010110010101011001100000

漢数字表記:二億七百十八万千四百八

素因数分解:

2 5 × 7 2 × 71 1 × 1861 1

素因数の和:1956
約数の個数: 72
約数和(自身を含む): 481423824
約数和(自身を除く): 274242416

約数列:
[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 71, 98, 112, 142, 196, 224, 284, 392, 497, 568, 784, 994, 1136, 1568, 1861, 1988, 2272, 3479, 3722, 3976, 6958, 7444, 7952, 13027, 13916, 14888, 15904, 26054, 27832, 29776, 52108, 55664, 59552, 91189, 104216, 111328, 132131, 182378, 208432, 264262, 364756, 416864, 528524, 729512, 924917, 1057048, 1459024, 1849834, 2114096, 2918048, 3699668, 4228192, 6474419, 7399336, 12948838, 14798672, 25897676, 29597344, 51795352, 103590704, 207181408]

約数ペア:
[(1, 207181408), (2, 103590704), (4, 51795352), (7, 29597344), (8, 25897676), (14, 14798672), (16, 12948838), (28, 7399336), (32, 6474419), (49, 4228192), (56, 3699668), (71, 2918048), (98, 2114096), (112, 1849834), (142, 1459024), (196, 1057048), (224, 924917), (284, 729512), (392, 528524), (497, 416864), (568, 364756), (784, 264262), (994, 208432), (1136, 182378), (1568, 132131), (1861, 111328), (1988, 104216), (2272, 91189), (3479, 59552), (3722, 55664), (3976, 52108), (6958, 29776), (7444, 27832), (7952, 26054), (13027, 15904), (13916, 14888)]

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