About the Number

138991360

138991359 ← → 138991361

2進数表記:1000010010001101011100000000

漢数字表記:一億三千八百九十九万千三百六十

素因数分解:

2 8 × 5 1 × 108587 1

素因数の和:108608
約数の個数: 36
約数和(自身を含む): 332930808
約数和(自身を除く): 193939448

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 108587, 217174, 434348, 542935, 868696, 1085870, 1737392, 2171740, 3474784, 4343480, 6949568, 8686960, 13899136, 17373920, 27798272, 34747840, 69495680, 138991360]

約数ペア:
[(1, 138991360), (2, 69495680), (4, 34747840), (5, 27798272), (8, 17373920), (10, 13899136), (16, 8686960), (20, 6949568), (32, 4343480), (40, 3474784), (64, 2171740), (80, 1737392), (128, 1085870), (160, 868696), (256, 542935), (320, 434348), (640, 217174), (1280, 108587)]

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