About the Number

20201388

20201387 ← → 20201389

2進数表記:1001101000011111110101100

漢数字表記:二千二十万千三百八十八

素因数分解:

2 2 × 3 1 × 941 1 × 1789 1

素因数の和:2737
約数の個数: 24
約数和(自身を含む): 47213040
約数和(自身を除く): 27011652

約数列:
[1, 2, 3, 4, 6, 12, 941, 1789, 1882, 2823, 3578, 3764, 5367, 5646, 7156, 10734, 11292, 21468, 1683449, 3366898, 5050347, 6733796, 10100694, 20201388]

約数ペア:
[(1, 20201388), (2, 10100694), (3, 6733796), (4, 5050347), (6, 3366898), (12, 1683449), (941, 21468), (1789, 11292), (1882, 10734), (2823, 7156), (3578, 5646), (3764, 5367)]

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