About the Number

220689280

220689279 ← → 220689281

2進数表記:1101001001110111001110000000

漢数字表記:二億二千六十八万九千二百八十

素因数分解:

2 7 × 5 1 × 7 1 × 49261 1

素因数の和:49287
約数の個数: 64
約数和(自身を含む): 602966880
約数和(自身を除く): 382277600

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 49261, 98522, 197044, 246305, 344827, 394088, 492610, 689654, 788176, 985220, 1379308, 1576352, 1724135, 1970440, 2758616, 3152704, 3448270, 3940880, 5517232, 6305408, 6896540, 7881760, 11034464, 13793080, 15763520, 22068928, 27586160, 31527040, 44137856, 55172320, 110344640, 220689280]

約数ペア:
[(1, 220689280), (2, 110344640), (4, 55172320), (5, 44137856), (7, 31527040), (8, 27586160), (10, 22068928), (14, 15763520), (16, 13793080), (20, 11034464), (28, 7881760), (32, 6896540), (35, 6305408), (40, 5517232), (56, 3940880), (64, 3448270), (70, 3152704), (80, 2758616), (112, 1970440), (128, 1724135), (140, 1576352), (160, 1379308), (224, 985220), (280, 788176), (320, 689654), (448, 492610), (560, 394088), (640, 344827), (896, 246305), (1120, 197044), (2240, 98522), (4480, 49261)]

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