About the Number

1019900988

1019900987 ← → 1019900989

2進数表記:111100110010100111010000111100

漢数字表記:十億千九百九十万九百八十八

素因数分解:

2 2 × 3 2 × 28330583 1

素因数の和:28330593
約数の個数: 18
約数和(自身を含む): 2578083144
約数和(自身を除く): 1558182156

約数列:
[1, 2, 3, 4, 6, 9, 12, 18, 36, 28330583, 56661166, 84991749, 113322332, 169983498, 254975247, 339966996, 509950494, 1019900988]

約数ペア:
[(1, 1019900988), (2, 509950494), (3, 339966996), (4, 254975247), (6, 169983498), (9, 113322332), (12, 84991749), (18, 56661166), (36, 28330583)]

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