About the Number

42972790

42972789 ← → 42972791

2進数表記:10100011111011011001110110

漢数字表記:四千二百九十七万二千七百九十

素因数分解:

2 1 × 5 1 × 7 1 × 137 1 × 4481 1

素因数の和:4632
約数の個数: 32
約数和(自身を含む): 89066304
約数和(自身を除く): 46093514

約数列:
[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 4481, 4795, 8962, 9590, 22405, 31367, 44810, 62734, 156835, 313670, 613897, 1227794, 3069485, 4297279, 6138970, 8594558, 21486395, 42972790]

約数ペア:
[(1, 42972790), (2, 21486395), (5, 8594558), (7, 6138970), (10, 4297279), (14, 3069485), (35, 1227794), (70, 613897), (137, 313670), (274, 156835), (685, 62734), (959, 44810), (1370, 31367), (1918, 22405), (4481, 9590), (4795, 8962)]

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