About the Number

13808690

13808689 ← → 13808691

2進数表記:110100101011010000110010

漢数字表記:千三百八十万八千六百九十

素因数分解:

2 1 × 5 1 × 7 2 × 28181 1

素因数の和:28202
約数の個数: 24
約数和(自身を含む): 28914732
約数和(自身を除く): 15106042

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 28181, 56362, 140905, 197267, 281810, 394534, 986335, 1380869, 1972670, 2761738, 6904345, 13808690]

約数ペア:
[(1, 13808690), (2, 6904345), (5, 2761738), (7, 1972670), (10, 1380869), (14, 986335), (35, 394534), (49, 281810), (70, 197267), (98, 140905), (245, 56362), (490, 28181)]

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