About the Number

118390420

118390419 ← → 118390421

2進数表記:111000011100111111010010100

漢数字表記:一億千八百三十九万四百二十

素因数分解:

2 2 × 5 1 × 457 1 × 12953 1

素因数の和:13419
約数の個数: 24
約数和(自身を含む): 249183144
約数和(自身を除く): 130792724

約数列:
[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 4570, 9140, 12953, 25906, 51812, 64765, 129530, 259060, 5919521, 11839042, 23678084, 29597605, 59195210, 118390420]

約数ペア:
[(1, 118390420), (2, 59195210), (4, 29597605), (5, 23678084), (10, 11839042), (20, 5919521), (457, 259060), (914, 129530), (1828, 64765), (2285, 51812), (4570, 25906), (9140, 12953)]

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