About the Number

20042745

20042744 ← → 20042746

2進数表記:1001100011101001111111001

漢数字表記:二千四万二千七百四十五

素因数分解:

3 1 × 5 1 × 17 1 × 53 1 × 1483 1

素因数の和:1561
約数の個数: 32
約数和(自身を含む): 34618752
約数和(自身を除く): 14576007

約数列:
[1, 3, 5, 15, 17, 51, 53, 85, 159, 255, 265, 795, 901, 1483, 2703, 4449, 4505, 7415, 13515, 22245, 25211, 75633, 78599, 126055, 235797, 378165, 392995, 1178985, 1336183, 4008549, 6680915, 20042745]

約数ペア:
[(1, 20042745), (3, 6680915), (5, 4008549), (15, 1336183), (17, 1178985), (51, 392995), (53, 378165), (85, 235797), (159, 126055), (255, 78599), (265, 75633), (795, 25211), (901, 22245), (1483, 13515), (2703, 7415), (4449, 4505)]

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