About the Number

201090380

201090379 ← → 201090381

2進数表記:1011111111000110010101001100

漢数字表記:二億百九万三百八十

素因数分解:

2 2 × 5 1 × 23 1 × 437153 1

素因数の和:437185
約数の個数: 24
約数和(自身を含む): 440651232
約数和(自身を除く): 239560852

約数列:
[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 437153, 874306, 1748612, 2185765, 4371530, 8743060, 10054519, 20109038, 40218076, 50272595, 100545190, 201090380]

約数ペア:
[(1, 201090380), (2, 100545190), (4, 50272595), (5, 40218076), (10, 20109038), (20, 10054519), (23, 8743060), (46, 4371530), (92, 2185765), (115, 1748612), (230, 874306), (460, 437153)]

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