About the Number

121280320

121280319 ← → 121280321

2進数表記:111001110101001011101000000

漢数字表記:一億二千百二十八万三百二十

素因数分解:

2 6 × 5 1 × 7 1 × 29 1 × 1867 1

素因数の和:1920
約数の個数: 112
約数和(自身を含む): 341619840
約数和(自身を除く): 220339520

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 320, 406, 448, 464, 560, 580, 812, 928, 1015, 1120, 1160, 1624, 1856, 1867, 2030, 2240, 2320, 3248, 3734, 4060, 4640, 6496, 7468, 8120, 9280, 9335, 12992, 13069, 14936, 16240, 18670, 26138, 29872, 32480, 37340, 52276, 54143, 59744, 64960, 65345, 74680, 104552, 108286, 119488, 130690, 149360, 209104, 216572, 261380, 270715, 298720, 379001, 418208, 433144, 522760, 541430, 597440, 758002, 836416, 866288, 1045520, 1082860, 1516004, 1732576, 1895005, 2091040, 2165720, 3032008, 3465152, 3790010, 4182080, 4331440, 6064016, 7580020, 8662880, 12128032, 15160040, 17325760, 24256064, 30320080, 60640160, 121280320]

約数ペア:
[(1, 121280320), (2, 60640160), (4, 30320080), (5, 24256064), (7, 17325760), (8, 15160040), (10, 12128032), (14, 8662880), (16, 7580020), (20, 6064016), (28, 4331440), (29, 4182080), (32, 3790010), (35, 3465152), (40, 3032008), (56, 2165720), (58, 2091040), (64, 1895005), (70, 1732576), (80, 1516004), (112, 1082860), (116, 1045520), (140, 866288), (145, 836416), (160, 758002), (203, 597440), (224, 541430), (232, 522760), (280, 433144), (290, 418208), (320, 379001), (406, 298720), (448, 270715), (464, 261380), (560, 216572), (580, 209104), (812, 149360), (928, 130690), (1015, 119488), (1120, 108286), (1160, 104552), (1624, 74680), (1856, 65345), (1867, 64960), (2030, 59744), (2240, 54143), (2320, 52276), (3248, 37340), (3734, 32480), (4060, 29872), (4640, 26138), (6496, 18670), (7468, 16240), (8120, 14936), (9280, 13069), (9335, 12992)]

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