About the Number

80712990

80712989 ← → 80712991

2進数表記:100110011111001010100011110

漢数字表記:八千七十一万二千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 298937 1

素因数の和:298953
約数の個数: 32
約数和(自身を含む): 215235360
約数和(自身を除く): 134522370

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 298937, 597874, 896811, 1494685, 1793622, 2690433, 2989370, 4484055, 5380866, 8071299, 8968110, 13452165, 16142598, 26904330, 40356495, 80712990]

約数ペア:
[(1, 80712990), (2, 40356495), (3, 26904330), (5, 16142598), (6, 13452165), (9, 8968110), (10, 8071299), (15, 5380866), (18, 4484055), (27, 2989370), (30, 2690433), (45, 1793622), (54, 1494685), (90, 896811), (135, 597874), (270, 298937)]

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