About the Number

128309640

128309639 ← → 128309641

2進数表記:111101001011101100110001000

漢数字表記:一億二千八百三十万九千六百四十

素因数分解:

2 3 × 3 1 × 5 1 × 23 1 × 46489 1

素因数の和:46526
約数の個数: 64
約数和(自身を含む): 401673600
約数和(自身を除く): 273363960

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 46489, 92978, 139467, 185956, 232445, 278934, 371912, 464890, 557868, 697335, 929780, 1069247, 1115736, 1394670, 1859560, 2138494, 2789340, 3207741, 4276988, 5346235, 5578680, 6415482, 8553976, 10692470, 12830964, 16038705, 21384940, 25661928, 32077410, 42769880, 64154820, 128309640]

約数ペア:
[(1, 128309640), (2, 64154820), (3, 42769880), (4, 32077410), (5, 25661928), (6, 21384940), (8, 16038705), (10, 12830964), (12, 10692470), (15, 8553976), (20, 6415482), (23, 5578680), (24, 5346235), (30, 4276988), (40, 3207741), (46, 2789340), (60, 2138494), (69, 1859560), (92, 1394670), (115, 1115736), (120, 1069247), (138, 929780), (184, 697335), (230, 557868), (276, 464890), (345, 371912), (460, 278934), (552, 232445), (690, 185956), (920, 139467), (1380, 92978), (2760, 46489)]

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