About the Number

42561890

42561889 ← → 42561891

2進数表記:10100010010111000101100010

漢数字表記:四千二百五十六万千八百九十

素因数分解:

2 1 × 5 1 × 7 2 × 86861 1

素因数の和:86882
約数の個数: 24
約数和(自身を含む): 89120412
約数和(自身を除く): 46558522

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 86861, 173722, 434305, 608027, 868610, 1216054, 3040135, 4256189, 6080270, 8512378, 21280945, 42561890]

約数ペア:
[(1, 42561890), (2, 21280945), (5, 8512378), (7, 6080270), (10, 4256189), (14, 3040135), (35, 1216054), (49, 868610), (70, 608027), (98, 434305), (245, 173722), (490, 86861)]

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