About the Number

1681221888

1681221887 ← → 1681221889

2進数表記:1100100001101010110100100000000

漢数字表記:十六億八千百二十二万千八百八十八

素因数分解:

2 8 × 3 2 × 67 1 × 10891 1

素因数の和:10980
約数の個数: 108
約数和(自身を含む): 4920177808
約数和(自身を除く): 3238955920

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 67, 72, 96, 128, 134, 144, 192, 201, 256, 268, 288, 384, 402, 536, 576, 603, 768, 804, 1072, 1152, 1206, 1608, 2144, 2304, 2412, 3216, 4288, 4824, 6432, 8576, 9648, 10891, 12864, 17152, 19296, 21782, 25728, 32673, 38592, 43564, 51456, 65346, 77184, 87128, 98019, 130692, 154368, 174256, 196038, 261384, 348512, 392076, 522768, 697024, 729697, 784152, 1045536, 1394048, 1459394, 1568304, 2091072, 2189091, 2788096, 2918788, 3136608, 4182144, 4378182, 5837576, 6273216, 6567273, 8364288, 8756364, 11675152, 12546432, 13134546, 17512728, 23350304, 25092864, 26269092, 35025456, 46700608, 52538184, 70050912, 93401216, 105076368, 140101824, 186802432, 210152736, 280203648, 420305472, 560407296, 840610944, 1681221888]

約数ペア:
[(1, 1681221888), (2, 840610944), (3, 560407296), (4, 420305472), (6, 280203648), (8, 210152736), (9, 186802432), (12, 140101824), (16, 105076368), (18, 93401216), (24, 70050912), (32, 52538184), (36, 46700608), (48, 35025456), (64, 26269092), (67, 25092864), (72, 23350304), (96, 17512728), (128, 13134546), (134, 12546432), (144, 11675152), (192, 8756364), (201, 8364288), (256, 6567273), (268, 6273216), (288, 5837576), (384, 4378182), (402, 4182144), (536, 3136608), (576, 2918788), (603, 2788096), (768, 2189091), (804, 2091072), (1072, 1568304), (1152, 1459394), (1206, 1394048), (1608, 1045536), (2144, 784152), (2304, 729697), (2412, 697024), (3216, 522768), (4288, 392076), (4824, 348512), (6432, 261384), (8576, 196038), (9648, 174256), (10891, 154368), (12864, 130692), (17152, 98019), (19296, 87128), (21782, 77184), (25728, 65346), (32673, 51456), (38592, 43564)]

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