About the Number

129640280

129640279 ← → 129640281

2進数表記:111101110100010011101011000

漢数字表記:一億二千九百六十四万二百八十

素因数分解:

2 3 × 5 1 × 7 3 × 11 1 × 859 1

素因数の和:902
約数の個数: 128
約数和(自身を含む): 371520000
約数和(自身を除く): 241879720

約数列:
[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 343, 385, 392, 440, 490, 539, 616, 686, 770, 859, 980, 1078, 1372, 1540, 1715, 1718, 1960, 2156, 2695, 2744, 3080, 3430, 3436, 3773, 4295, 4312, 5390, 6013, 6860, 6872, 7546, 8590, 9449, 10780, 12026, 13720, 15092, 17180, 18865, 18898, 21560, 24052, 30065, 30184, 34360, 37730, 37796, 42091, 47245, 48104, 60130, 66143, 75460, 75592, 84182, 94490, 120260, 132286, 150920, 168364, 188980, 210455, 240520, 264572, 294637, 330715, 336728, 377960, 420910, 463001, 529144, 589274, 661430, 841820, 926002, 1178548, 1322860, 1473185, 1683640, 1852004, 2315005, 2357096, 2645720, 2946370, 3241007, 3704008, 4630010, 5892740, 6482014, 9260020, 11785480, 12964028, 16205035, 18520040, 25928056, 32410070, 64820140, 129640280]

約数ペア:
[(1, 129640280), (2, 64820140), (4, 32410070), (5, 25928056), (7, 18520040), (8, 16205035), (10, 12964028), (11, 11785480), (14, 9260020), (20, 6482014), (22, 5892740), (28, 4630010), (35, 3704008), (40, 3241007), (44, 2946370), (49, 2645720), (55, 2357096), (56, 2315005), (70, 1852004), (77, 1683640), (88, 1473185), (98, 1322860), (110, 1178548), (140, 926002), (154, 841820), (196, 661430), (220, 589274), (245, 529144), (280, 463001), (308, 420910), (343, 377960), (385, 336728), (392, 330715), (440, 294637), (490, 264572), (539, 240520), (616, 210455), (686, 188980), (770, 168364), (859, 150920), (980, 132286), (1078, 120260), (1372, 94490), (1540, 84182), (1715, 75592), (1718, 75460), (1960, 66143), (2156, 60130), (2695, 48104), (2744, 47245), (3080, 42091), (3430, 37796), (3436, 37730), (3773, 34360), (4295, 30184), (4312, 30065), (5390, 24052), (6013, 21560), (6860, 18898), (6872, 18865), (7546, 17180), (8590, 15092), (9449, 13720), (10780, 12026)]

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