About the Number

216407680

216407679 ← → 216407681

2進数表記:1100111001100001111010000000

漢数字表記:二億千六百四十万七千六百八十

素因数分解:

2 7 × 5 1 × 338137 1

素因数の和:338156
約数の個数: 32
約数和(自身を含む): 517351140
約数和(自身を除く): 300943460

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 338137, 676274, 1352548, 1690685, 2705096, 3381370, 5410192, 6762740, 10820384, 13525480, 21640768, 27050960, 43281536, 54101920, 108203840, 216407680]

約数ペア:
[(1, 216407680), (2, 108203840), (4, 54101920), (5, 43281536), (8, 27050960), (10, 21640768), (16, 13525480), (20, 10820384), (32, 6762740), (40, 5410192), (64, 3381370), (80, 2705096), (128, 1690685), (160, 1352548), (320, 676274), (640, 338137)]

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