About the Number

138485920

138485919 ← → 138485921

2進数表記:1000010000010010000010100000

漢数字表記:一億三千八百四十八万五千九百二十

素因数分解:

2 5 × 5 1 × 865537 1

素因数の和:865552
約数の個数: 24
約数和(自身を含む): 327173364
約数和(自身を除く): 188687444

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 865537, 1731074, 3462148, 4327685, 6924296, 8655370, 13848592, 17310740, 27697184, 34621480, 69242960, 138485920]

約数ペア:
[(1, 138485920), (2, 69242960), (4, 34621480), (5, 27697184), (8, 17310740), (10, 13848592), (16, 8655370), (20, 6924296), (32, 4327685), (40, 3462148), (80, 1731074), (160, 865537)]

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