About the Number

208728268

208728267 ← → 208728269

2進数表記:1100011100001111000011001100

漢数字表記:二億八百七十二万八千二百六十八

素因数分解:

2 2 × 7 1 × 137 1 × 54413 1

素因数の和:54561
約数の個数: 24
約数和(自身を含む): 420511392
約数和(自身を除く): 211783124

約数列:
[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 54413, 108826, 217652, 380891, 761782, 1523564, 7454581, 14909162, 29818324, 52182067, 104364134, 208728268]

約数ペア:
[(1, 208728268), (2, 104364134), (4, 52182067), (7, 29818324), (14, 14909162), (28, 7454581), (137, 1523564), (274, 761782), (548, 380891), (959, 217652), (1918, 108826), (3836, 54413)]

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