About the Number

2131255580

2131255579 ← → 2131255581

2進数表記:1111111000010000110000100011100

漢数字表記:二十一億三千百二十五万五千五百八十

素因数分解:

2 2 × 5 1 × 31 1 × 127 1 × 27067 1

素因数の和:27234
約数の個数: 48
約数和(自身を含む): 4656562176
約数和(自身を除く): 2525306596

約数列:
[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2540, 3937, 7874, 15748, 19685, 27067, 39370, 54134, 78740, 108268, 135335, 270670, 541340, 839077, 1678154, 3356308, 3437509, 4195385, 6875018, 8390770, 13750036, 16781540, 17187545, 34375090, 68750180, 106562779, 213125558, 426251116, 532813895, 1065627790, 2131255580]

約数ペア:
[(1, 2131255580), (2, 1065627790), (4, 532813895), (5, 426251116), (10, 213125558), (20, 106562779), (31, 68750180), (62, 34375090), (124, 17187545), (127, 16781540), (155, 13750036), (254, 8390770), (310, 6875018), (508, 4195385), (620, 3437509), (635, 3356308), (1270, 1678154), (2540, 839077), (3937, 541340), (7874, 270670), (15748, 135335), (19685, 108268), (27067, 78740), (39370, 54134)]

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