About the Number

128549040

128549039 ← → 128549041

2進数表記:111101010011000000010110000

漢数字表記:一億二千八百五十四万九千四十

素因数分解:

2 4 × 3 1 × 5 1 × 433 1 × 1237 1

素因数の和:1686
約数の個数: 80
約数和(自身を含む): 399745248
約数和(自身を除く): 271196208

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 433, 866, 1237, 1299, 1732, 2165, 2474, 2598, 3464, 3711, 4330, 4948, 5196, 6185, 6495, 6928, 7422, 8660, 9896, 10392, 12370, 12990, 14844, 17320, 18555, 19792, 20784, 24740, 25980, 29688, 34640, 37110, 49480, 51960, 59376, 74220, 98960, 103920, 148440, 296880, 535621, 1071242, 1606863, 2142484, 2678105, 3213726, 4284968, 5356210, 6427452, 8034315, 8569936, 10712420, 12854904, 16068630, 21424840, 25709808, 32137260, 42849680, 64274520, 128549040]

約数ペア:
[(1, 128549040), (2, 64274520), (3, 42849680), (4, 32137260), (5, 25709808), (6, 21424840), (8, 16068630), (10, 12854904), (12, 10712420), (15, 8569936), (16, 8034315), (20, 6427452), (24, 5356210), (30, 4284968), (40, 3213726), (48, 2678105), (60, 2142484), (80, 1606863), (120, 1071242), (240, 535621), (433, 296880), (866, 148440), (1237, 103920), (1299, 98960), (1732, 74220), (2165, 59376), (2474, 51960), (2598, 49480), (3464, 37110), (3711, 34640), (4330, 29688), (4948, 25980), (5196, 24740), (6185, 20784), (6495, 19792), (6928, 18555), (7422, 17320), (8660, 14844), (9896, 12990), (10392, 12370)]

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