About the Number

128349840

128349839 ← → 128349841

2進数表記:111101001100111011010010000

漢数字表記:一億二千八百三十四万九千八百四十

素因数分解:

2 4 × 3 1 × 5 1 × 43 1 × 12437 1

素因数の和:12496
約数の個数: 80
約数和(自身を含む): 407170368
約数和(自身を除く): 278820528

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 2064, 2580, 3440, 5160, 10320, 12437, 24874, 37311, 49748, 62185, 74622, 99496, 124370, 149244, 186555, 198992, 248740, 298488, 373110, 497480, 534791, 596976, 746220, 994960, 1069582, 1492440, 1604373, 2139164, 2673955, 2984880, 3208746, 4278328, 5347910, 6417492, 8021865, 8556656, 10695820, 12834984, 16043730, 21391640, 25669968, 32087460, 42783280, 64174920, 128349840]

約数ペア:
[(1, 128349840), (2, 64174920), (3, 42783280), (4, 32087460), (5, 25669968), (6, 21391640), (8, 16043730), (10, 12834984), (12, 10695820), (15, 8556656), (16, 8021865), (20, 6417492), (24, 5347910), (30, 4278328), (40, 3208746), (43, 2984880), (48, 2673955), (60, 2139164), (80, 1604373), (86, 1492440), (120, 1069582), (129, 994960), (172, 746220), (215, 596976), (240, 534791), (258, 497480), (344, 373110), (430, 298488), (516, 248740), (645, 198992), (688, 186555), (860, 149244), (1032, 124370), (1290, 99496), (1720, 74622), (2064, 62185), (2580, 49748), (3440, 37311), (5160, 24874), (10320, 12437)]

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