About the Number

7681240

7681239 ← → 7681241

2進数表記:11101010011010011011000

漢数字表記:七百六十八万千二百四十

素因数分解:

2 3 × 5 1 × 7 2 × 3919 1

素因数の和:3944
約数の個数: 48
約数和(自身を含む): 20109600
約数和(自身を除く): 12428360

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 3919, 7838, 15676, 19595, 27433, 31352, 39190, 54866, 78380, 109732, 137165, 156760, 192031, 219464, 274330, 384062, 548660, 768124, 960155, 1097320, 1536248, 1920310, 3840620, 7681240]

約数ペア:
[(1, 7681240), (2, 3840620), (4, 1920310), (5, 1536248), (7, 1097320), (8, 960155), (10, 768124), (14, 548660), (20, 384062), (28, 274330), (35, 219464), (40, 192031), (49, 156760), (56, 137165), (70, 109732), (98, 78380), (140, 54866), (196, 39190), (245, 31352), (280, 27433), (392, 19595), (490, 15676), (980, 7838), (1960, 3919)]

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