About the Number

201301281

201301280 ← → 201301282

2進数表記:1011111111111001110100100001

漢数字表記:二億百三十万千二百八十一

素因数分解:

3 4 × 61 1 × 131 1 × 311 1

素因数の和:515
約数の個数: 40
約数和(自身を含む): 308962368
約数和(自身を除く): 107661087

約数列:
[1, 3, 9, 27, 61, 81, 131, 183, 311, 393, 549, 933, 1179, 1647, 2799, 3537, 4941, 7991, 8397, 10611, 18971, 23973, 25191, 40741, 56913, 71919, 122223, 170739, 215757, 366669, 512217, 647271, 1100007, 1536651, 2485201, 3300021, 7455603, 22366809, 67100427, 201301281]

約数ペア:
[(1, 201301281), (3, 67100427), (9, 22366809), (27, 7455603), (61, 3300021), (81, 2485201), (131, 1536651), (183, 1100007), (311, 647271), (393, 512217), (549, 366669), (933, 215757), (1179, 170739), (1647, 122223), (2799, 71919), (3537, 56913), (4941, 40741), (7991, 25191), (8397, 23973), (10611, 18971)]

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