About the Number

1238438240

1238438239 ← → 1238438241

2進数表記:1001001110100010001000101100000

漢数字表記:十二億三千八百四十三万八千二百四十

素因数分解:

2 5 × 5 1 × 13 1 × 19 1 × 31337 1

素因数の和:31384
約数の個数: 96
約数和(自身を含む): 3316813920
約数和(自身を除く): 2078375680

約数列:
[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 380, 416, 494, 520, 608, 760, 988, 1040, 1235, 1520, 1976, 2080, 2470, 3040, 3952, 4940, 7904, 9880, 19760, 31337, 39520, 62674, 125348, 156685, 250696, 313370, 407381, 501392, 595403, 626740, 814762, 1002784, 1190806, 1253480, 1629524, 2036905, 2381612, 2506960, 2977015, 3259048, 4073810, 4763224, 5013920, 5954030, 6518096, 7740239, 8147620, 9526448, 11908060, 13036192, 15480478, 16295240, 19052896, 23816120, 30960956, 32590480, 38701195, 47632240, 61921912, 65180960, 77402390, 95264480, 123843824, 154804780, 247687648, 309609560, 619219120, 1238438240]

約数ペア:
[(1, 1238438240), (2, 619219120), (4, 309609560), (5, 247687648), (8, 154804780), (10, 123843824), (13, 95264480), (16, 77402390), (19, 65180960), (20, 61921912), (26, 47632240), (32, 38701195), (38, 32590480), (40, 30960956), (52, 23816120), (65, 19052896), (76, 16295240), (80, 15480478), (95, 13036192), (104, 11908060), (130, 9526448), (152, 8147620), (160, 7740239), (190, 6518096), (208, 5954030), (247, 5013920), (260, 4763224), (304, 4073810), (380, 3259048), (416, 2977015), (494, 2506960), (520, 2381612), (608, 2036905), (760, 1629524), (988, 1253480), (1040, 1190806), (1235, 1002784), (1520, 814762), (1976, 626740), (2080, 595403), (2470, 501392), (3040, 407381), (3952, 313370), (4940, 250696), (7904, 156685), (9880, 125348), (19760, 62674), (31337, 39520)]

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