About the Number

1277409390

1277409389 ← → 1277409391

2進数表記:1001100001000111011100001101110

漢数字表記:十二億七千七百四十万九千三百九十

素因数分解:

2 1 × 3 1 × 5 1 × 42580313 1

素因数の和:42580323
約数の個数: 16
約数和(自身を含む): 3065782608
約数和(自身を除く): 1788373218

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 42580313, 85160626, 127740939, 212901565, 255481878, 425803130, 638704695, 1277409390]

約数ペア:
[(1, 1277409390), (2, 638704695), (3, 425803130), (5, 255481878), (6, 212901565), (10, 127740939), (15, 85160626), (30, 42580313)]

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