About the Number

28987488

28987487 ← → 28987489

2進数表記:1101110100101000001100000

漢数字表記:二千八百九十八万七千四百八十八

素因数分解:

2 5 × 3 2 × 251 1 × 401 1

素因数の和:668
約数の個数: 72
約数和(自身を含む): 82967976
約数和(自身を除く): 53980488

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 251, 288, 401, 502, 753, 802, 1004, 1203, 1506, 1604, 2008, 2259, 2406, 3012, 3208, 3609, 4016, 4518, 4812, 6024, 6416, 7218, 8032, 9036, 9624, 12048, 12832, 14436, 18072, 19248, 24096, 28872, 36144, 38496, 57744, 72288, 100651, 115488, 201302, 301953, 402604, 603906, 805208, 905859, 1207812, 1610416, 1811718, 2415624, 3220832, 3623436, 4831248, 7246872, 9662496, 14493744, 28987488]

約数ペア:
[(1, 28987488), (2, 14493744), (3, 9662496), (4, 7246872), (6, 4831248), (8, 3623436), (9, 3220832), (12, 2415624), (16, 1811718), (18, 1610416), (24, 1207812), (32, 905859), (36, 805208), (48, 603906), (72, 402604), (96, 301953), (144, 201302), (251, 115488), (288, 100651), (401, 72288), (502, 57744), (753, 38496), (802, 36144), (1004, 28872), (1203, 24096), (1506, 19248), (1604, 18072), (2008, 14436), (2259, 12832), (2406, 12048), (3012, 9624), (3208, 9036), (3609, 8032), (4016, 7218), (4518, 6416), (4812, 6024)]

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