About the Number

247909920

247909919 ← → 247909921

2進数表記:1110110001101100111000100000

漢数字表記:二億四千七百九十万九千九百二十

素因数分解:

2 5 × 3 1 × 5 1 × 239 1 × 2161 1

素因数の和:2418
約数の個数: 96
約数和(自身を含む): 784546560
約数和(自身を除く): 536636640

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, 239, 240, 478, 480, 717, 956, 1195, 1434, 1912, 2161, 2390, 2868, 3585, 3824, 4322, 4780, 5736, 6483, 7170, 7648, 8644, 9560, 10805, 11472, 12966, 14340, 17288, 19120, 21610, 22944, 25932, 28680, 32415, 34576, 38240, 43220, 51864, 57360, 64830, 69152, 86440, 103728, 114720, 129660, 172880, 207456, 259320, 345760, 516479, 518640, 1032958, 1037280, 1549437, 2065916, 2582395, 3098874, 4131832, 5164790, 6197748, 7747185, 8263664, 10329580, 12395496, 15494370, 16527328, 20659160, 24790992, 30988740, 41318320, 49581984, 61977480, 82636640, 123954960, 247909920]

約数ペア:
[(1, 247909920), (2, 123954960), (3, 82636640), (4, 61977480), (5, 49581984), (6, 41318320), (8, 30988740), (10, 24790992), (12, 20659160), (15, 16527328), (16, 15494370), (20, 12395496), (24, 10329580), (30, 8263664), (32, 7747185), (40, 6197748), (48, 5164790), (60, 4131832), (80, 3098874), (96, 2582395), (120, 2065916), (160, 1549437), (239, 1037280), (240, 1032958), (478, 518640), (480, 516479), (717, 345760), (956, 259320), (1195, 207456), (1434, 172880), (1912, 129660), (2161, 114720), (2390, 103728), (2868, 86440), (3585, 69152), (3824, 64830), (4322, 57360), (4780, 51864), (5736, 43220), (6483, 38240), (7170, 34576), (7648, 32415), (8644, 28680), (9560, 25932), (10805, 22944), (11472, 21610), (12966, 19120), (14340, 17288)]

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