About the Number

129706640

129706639 ← → 129706641

2進数表記:111101110110010101010010000

漢数字表記:一億二千九百七十万六千六百四十

素因数分解:

2 4 × 5 1 × 7 1 × 67 1 × 3457 1

素因数の和:3544
約数の個数: 80
約数和(自身を含む): 349894272
約数和(自身を除く): 220187632

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 536, 560, 670, 938, 1072, 1340, 1876, 2345, 2680, 3457, 3752, 4690, 5360, 6914, 7504, 9380, 13828, 17285, 18760, 24199, 27656, 34570, 37520, 48398, 55312, 69140, 96796, 120995, 138280, 193592, 231619, 241990, 276560, 387184, 463238, 483980, 926476, 967960, 1158095, 1621333, 1852952, 1935920, 2316190, 3242666, 3705904, 4632380, 6485332, 8106665, 9264760, 12970664, 16213330, 18529520, 25941328, 32426660, 64853320, 129706640]

約数ペア:
[(1, 129706640), (2, 64853320), (4, 32426660), (5, 25941328), (7, 18529520), (8, 16213330), (10, 12970664), (14, 9264760), (16, 8106665), (20, 6485332), (28, 4632380), (35, 3705904), (40, 3242666), (56, 2316190), (67, 1935920), (70, 1852952), (80, 1621333), (112, 1158095), (134, 967960), (140, 926476), (268, 483980), (280, 463238), (335, 387184), (469, 276560), (536, 241990), (560, 231619), (670, 193592), (938, 138280), (1072, 120995), (1340, 96796), (1876, 69140), (2345, 55312), (2680, 48398), (3457, 37520), (3752, 34570), (4690, 27656), (5360, 24199), (6914, 18760), (7504, 17285), (9380, 13828)]

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