About the Number

20728520

20728519 ← → 20728521

2進数表記:1001111000100101011001000

漢数字表記:二千七十二万八千五百二十

素因数分解:

2 3 × 5 1 × 23 1 × 22531 1

素因数の和:22565
約数の個数: 32
約数和(自身を含む): 48669120
約数和(自身を除く): 27940600

約数列:
[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22531, 45062, 90124, 112655, 180248, 225310, 450620, 518213, 901240, 1036426, 2072852, 2591065, 4145704, 5182130, 10364260, 20728520]

約数ペア:
[(1, 20728520), (2, 10364260), (4, 5182130), (5, 4145704), (8, 2591065), (10, 2072852), (20, 1036426), (23, 901240), (40, 518213), (46, 450620), (92, 225310), (115, 180248), (184, 112655), (230, 90124), (460, 45062), (920, 22531)]

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