About the Number

217430880

217430879 ← → 217430881

2進数表記:1100111101011011101101100000

漢数字表記:二億千七百四十三万八百八十

素因数分解:

2 5 × 3 1 × 5 1 × 431 1 × 1051 1

素因数の和:1500
約数の個数: 96
約数和(自身を含む): 687149568
約数和(自身を除く): 469718688

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 431, 480, 862, 1051, 1293, 1724, 2102, 2155, 2586, 3153, 3448, 4204, 4310, 5172, 5255, 6306, 6465, 6896, 8408, 8620, 10344, 10510, 12612, 12930, 13792, 15765, 16816, 17240, 20688, 21020, 25224, 25860, 31530, 33632, 34480, 41376, 42040, 50448, 51720, 63060, 68960, 84080, 100896, 103440, 126120, 168160, 206880, 252240, 452981, 504480, 905962, 1358943, 1811924, 2264905, 2717886, 3623848, 4529810, 5435772, 6794715, 7247696, 9059620, 10871544, 13589430, 14495392, 18119240, 21743088, 27178860, 36238480, 43486176, 54357720, 72476960, 108715440, 217430880]

約数ペア:
[(1, 217430880), (2, 108715440), (3, 72476960), (4, 54357720), (5, 43486176), (6, 36238480), (8, 27178860), (10, 21743088), (12, 18119240), (15, 14495392), (16, 13589430), (20, 10871544), (24, 9059620), (30, 7247696), (32, 6794715), (40, 5435772), (48, 4529810), (60, 3623848), (80, 2717886), (96, 2264905), (120, 1811924), (160, 1358943), (240, 905962), (431, 504480), (480, 452981), (862, 252240), (1051, 206880), (1293, 168160), (1724, 126120), (2102, 103440), (2155, 100896), (2586, 84080), (3153, 68960), (3448, 63060), (4204, 51720), (4310, 50448), (5172, 42040), (5255, 41376), (6306, 34480), (6465, 33632), (6896, 31530), (8408, 25860), (8620, 25224), (10344, 21020), (10510, 20688), (12612, 17240), (12930, 16816), (13792, 15765)]

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