About the Number

30801988

30801987 ← → 30801989

2進数表記:1110101100000000001000100

漢数字表記:三千八十万千九百八十八

素因数分解:

2 2 × 7 2 × 41 1 × 3833 1

素因数の和:3892
約数の個数: 36
約数和(自身を含む): 64250172
約数和(自身を除く): 33448184

約数列:
[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 3833, 4018, 7666, 8036, 15332, 26831, 53662, 107324, 157153, 187817, 314306, 375634, 628612, 751268, 1100071, 2200142, 4400284, 7700497, 15400994, 30801988]

約数ペア:
[(1, 30801988), (2, 15400994), (4, 7700497), (7, 4400284), (14, 2200142), (28, 1100071), (41, 751268), (49, 628612), (82, 375634), (98, 314306), (164, 187817), (196, 157153), (287, 107324), (574, 53662), (1148, 26831), (2009, 15332), (3833, 8036), (4018, 7666)]

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