About the Number

1388132380

1388132379 ← → 1388132381

2進数表記:1010010101111010011100000011100

漢数字表記:十三億八千八百十三万二千三百八十

素因数分解:

2 2 × 5 1 × 5003 1 × 13873 1

素因数の和:18885
約数の個数: 24
約数和(自身を含む): 2915870832
約数和(自身を除く): 1527738452

約数列:
[1, 2, 4, 5, 10, 20, 5003, 10006, 13873, 20012, 25015, 27746, 50030, 55492, 69365, 100060, 138730, 277460, 69406619, 138813238, 277626476, 347033095, 694066190, 1388132380]

約数ペア:
[(1, 1388132380), (2, 694066190), (4, 347033095), (5, 277626476), (10, 138813238), (20, 69406619), (5003, 277460), (10006, 138730), (13873, 100060), (20012, 69365), (25015, 55492), (27746, 50030)]

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