About the Number

124920990

124920989 ← → 124920991

2進数表記:111011100100010010010011110

漢数字表記:一億二千四百九十二万九百九十

素因数分解:

2 1 × 3 2 × 5 1 × 1388011 1

素因数の和:1388024
約数の個数: 24
約数和(自身を含む): 324794808
約数和(自身を除く): 199873818

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 1388011, 2776022, 4164033, 6940055, 8328066, 12492099, 13880110, 20820165, 24984198, 41640330, 62460495, 124920990]

約数ペア:
[(1, 124920990), (2, 62460495), (3, 41640330), (5, 24984198), (6, 20820165), (9, 13880110), (10, 12492099), (15, 8328066), (18, 6940055), (30, 4164033), (45, 2776022), (90, 1388011)]

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