About the Number

200790730

200790729 ← → 200790731

2進数表記:1011111101111101001011001010

漢数字表記:二億七十九万七百三十

素因数分解:

2 1 × 5 1 × 7 2 × 409777 1

素因数の和:409798
約数の個数: 24
約数和(自身を含む): 420432228
約数和(自身を除く): 219641498

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 409777, 819554, 2048885, 2868439, 4097770, 5736878, 14342195, 20079073, 28684390, 40158146, 100395365, 200790730]

約数ペア:
[(1, 200790730), (2, 100395365), (5, 40158146), (7, 28684390), (10, 20079073), (14, 14342195), (35, 5736878), (49, 4097770), (70, 2868439), (98, 2048885), (245, 819554), (490, 409777)]

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