About the Number

2012112081

2012112080 ← → 2012112082

2進数表記:1110111111011100110010011010001

漢数字表記:二十億千二百十一万二千八十一

素因数分解:

3 2 × 7 1 × 239 1 × 133633 1

素因数の和:133885
約数の個数: 24
約数和(自身を含む): 3335504640
約数和(自身を除く): 1323392559

約数列:
[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2151, 5019, 15057, 133633, 400899, 935431, 1202697, 2806293, 8418879, 31938287, 95814861, 223568009, 287444583, 670704027, 2012112081]

約数ペア:
[(1, 2012112081), (3, 670704027), (7, 287444583), (9, 223568009), (21, 95814861), (63, 31938287), (239, 8418879), (717, 2806293), (1673, 1202697), (2151, 935431), (5019, 400899), (15057, 133633)]

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