About the Number

9990

9989 ← → 9991

2進数表記:10011100000110

漢数字表記:九千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 37 1

素因数の和:53
約数の個数: 32
約数和(自身を含む): 27360
約数和(自身を除く): 17370

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 3330, 4995, 9990]

約数ペア:
[(1, 9990), (2, 4995), (3, 3330), (5, 1998), (6, 1665), (9, 1110), (10, 999), (15, 666), (18, 555), (27, 370), (30, 333), (37, 270), (45, 222), (54, 185), (74, 135), (90, 111)]

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