About the Number

9800990

9800989 ← → 9800991

2進数表記:100101011000110100011110

漢数字表記:九百八十万九百九十

素因数分解:

2 1 × 5 1 × 23 1 × 43 1 × 991 1

素因数の和:1064
約数の個数: 32
約数和(自身を含む): 18855936
約数和(自身を除く): 9054946

約数列:
[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 991, 1978, 1982, 4945, 4955, 9890, 9910, 22793, 42613, 45586, 85226, 113965, 213065, 227930, 426130, 980099, 1960198, 4900495, 9800990]

約数ペア:
[(1, 9800990), (2, 4900495), (5, 1960198), (10, 980099), (23, 426130), (43, 227930), (46, 213065), (86, 113965), (115, 85226), (215, 45586), (230, 42613), (430, 22793), (989, 9910), (991, 9890), (1978, 4955), (1982, 4945)]

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