About the Number

210121920

210121919 ← → 210121921

2進数表記:1100100001100011010011000000

漢数字表記:二億千十二万千九百二十

素因数分解:

2 6 × 3 2 × 5 1 × 72959 1

素因数の和:72982
約数の個数: 84
約数和(自身を含む): 722741760
約数和(自身を除く): 512619840

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 72959, 145918, 218877, 291836, 364795, 437754, 583672, 656631, 729590, 875508, 1094385, 1167344, 1313262, 1459180, 1751016, 2188770, 2334688, 2626524, 2918360, 3283155, 3502032, 4377540, 4669376, 5253048, 5836720, 6566310, 7004064, 8755080, 10506096, 11673440, 13132620, 14008128, 17510160, 21012192, 23346880, 26265240, 35020320, 42024384, 52530480, 70040640, 105060960, 210121920]

約数ペア:
[(1, 210121920), (2, 105060960), (3, 70040640), (4, 52530480), (5, 42024384), (6, 35020320), (8, 26265240), (9, 23346880), (10, 21012192), (12, 17510160), (15, 14008128), (16, 13132620), (18, 11673440), (20, 10506096), (24, 8755080), (30, 7004064), (32, 6566310), (36, 5836720), (40, 5253048), (45, 4669376), (48, 4377540), (60, 3502032), (64, 3283155), (72, 2918360), (80, 2626524), (90, 2334688), (96, 2188770), (120, 1751016), (144, 1459180), (160, 1313262), (180, 1167344), (192, 1094385), (240, 875508), (288, 729590), (320, 656631), (360, 583672), (480, 437754), (576, 364795), (720, 291836), (960, 218877), (1440, 145918), (2880, 72959)]

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