About the Number

129213216

129213215 ← → 129213217

2進数表記:111101100111010001100100000

漢数字表記:一億二千九百二十一万三千二百十六

素因数分解:

2 5 × 3 2 × 11 1 × 40787 1

素因数の和:40814
約数の個数: 72
約数和(自身を含む): 400864464
約数和(自身を除く): 271651248

約数列:
[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 88, 96, 99, 132, 144, 176, 198, 264, 288, 352, 396, 528, 792, 1056, 1584, 3168, 40787, 81574, 122361, 163148, 244722, 326296, 367083, 448657, 489444, 652592, 734166, 897314, 978888, 1305184, 1345971, 1468332, 1794628, 1957776, 2691942, 2936664, 3589256, 3915552, 4037913, 5383884, 5873328, 7178512, 8075826, 10767768, 11746656, 14357024, 16151652, 21535536, 32303304, 43071072, 64606608, 129213216]

約数ペア:
[(1, 129213216), (2, 64606608), (3, 43071072), (4, 32303304), (6, 21535536), (8, 16151652), (9, 14357024), (11, 11746656), (12, 10767768), (16, 8075826), (18, 7178512), (22, 5873328), (24, 5383884), (32, 4037913), (33, 3915552), (36, 3589256), (44, 2936664), (48, 2691942), (66, 1957776), (72, 1794628), (88, 1468332), (96, 1345971), (99, 1305184), (132, 978888), (144, 897314), (176, 734166), (198, 652592), (264, 489444), (288, 448657), (352, 367083), (396, 326296), (528, 244722), (792, 163148), (1056, 122361), (1584, 81574), (3168, 40787)]

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