About the Number

51234890

51234889 ← → 51234891

2進数表記:11000011011100100001001010

漢数字表記:五千百二十三万四千八百九十

素因数分解:

2 1 × 5 1 × 7 2 × 104561 1

素因数の和:104582
約数の個数: 24
約数和(自身を含む): 107280612
約数和(自身を除く): 56045722

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 104561, 209122, 522805, 731927, 1045610, 1463854, 3659635, 5123489, 7319270, 10246978, 25617445, 51234890]

約数ペア:
[(1, 51234890), (2, 25617445), (5, 10246978), (7, 7319270), (10, 5123489), (14, 3659635), (35, 1463854), (49, 1045610), (70, 731927), (98, 522805), (245, 209122), (490, 104561)]

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