About the Number

12311988

12311987 ← → 12311989

2進数表記:101110111101110110110100

漢数字表記:千二百三十一万千九百八十八

素因数分解:

2 2 × 3 1 × 13 3 × 467 1

素因数の和:513
約数の個数: 48
約数和(自身を含む): 31187520
約数和(自身を除く): 18875532

約数列:
[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 467, 507, 676, 934, 1014, 1401, 1868, 2028, 2197, 2802, 4394, 5604, 6071, 6591, 8788, 12142, 13182, 18213, 24284, 26364, 36426, 72852, 78923, 157846, 236769, 315692, 473538, 947076, 1025999, 2051998, 3077997, 4103996, 6155994, 12311988]

約数ペア:
[(1, 12311988), (2, 6155994), (3, 4103996), (4, 3077997), (6, 2051998), (12, 1025999), (13, 947076), (26, 473538), (39, 315692), (52, 236769), (78, 157846), (156, 78923), (169, 72852), (338, 36426), (467, 26364), (507, 24284), (676, 18213), (934, 13182), (1014, 12142), (1401, 8788), (1868, 6591), (2028, 6071), (2197, 5604), (2802, 4394)]

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