About the Number

138864880

138864879 ← → 138864881

2進数表記:1000010001101110100011110000

漢数字表記:一億三千八百八十六万四千八百八十

素因数分解:

2 4 × 5 1 × 7 1 × 11 1 × 22543 1

素因数の和:22574
約数の個数: 80
約数和(自身を含む): 402545664
約数和(自身を除く): 263680784

約数列:
[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 22543, 45086, 90172, 112715, 157801, 180344, 225430, 247973, 315602, 360688, 450860, 495946, 631204, 789005, 901720, 991892, 1239865, 1262408, 1578010, 1735811, 1803440, 1983784, 2479730, 2524816, 3156020, 3471622, 3967568, 4959460, 6312040, 6943244, 8679055, 9918920, 12624080, 13886488, 17358110, 19837840, 27772976, 34716220, 69432440, 138864880]

約数ペア:
[(1, 138864880), (2, 69432440), (4, 34716220), (5, 27772976), (7, 19837840), (8, 17358110), (10, 13886488), (11, 12624080), (14, 9918920), (16, 8679055), (20, 6943244), (22, 6312040), (28, 4959460), (35, 3967568), (40, 3471622), (44, 3156020), (55, 2524816), (56, 2479730), (70, 1983784), (77, 1803440), (80, 1735811), (88, 1578010), (110, 1262408), (112, 1239865), (140, 991892), (154, 901720), (176, 789005), (220, 631204), (280, 495946), (308, 450860), (385, 360688), (440, 315602), (560, 247973), (616, 225430), (770, 180344), (880, 157801), (1232, 112715), (1540, 90172), (3080, 45086), (6160, 22543)]

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