About the Number

201210885

201210884 ← → 201210886

2進数表記:1011111111100011110000000101

漢数字表記:二億百二十一万八百八十五

素因数分解:

3 4 × 5 1 × 496817 1

素因数の和:496834
約数の個数: 20
約数和(自身を含む): 360689868
約数和(自身を除く): 159478983

約数列:
[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 496817, 1490451, 2484085, 4471353, 7452255, 13414059, 22356765, 40242177, 67070295, 201210885]

約数ペア:
[(1, 201210885), (3, 67070295), (5, 40242177), (9, 22356765), (15, 13414059), (27, 7452255), (45, 4471353), (81, 2484085), (135, 1490451), (405, 496817)]

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