About the Number

18740020

18740019 ← → 18740021

2進数表記:1000111011111001100110100

漢数字表記:千八百七十四万二十

素因数分解:

2 2 × 5 1 × 13 1 × 72077 1

素因数の和:72099
約数の個数: 24
約数和(自身を含む): 42381864
約数和(自身を除く): 23641844

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72077, 144154, 288308, 360385, 720770, 937001, 1441540, 1874002, 3748004, 4685005, 9370010, 18740020]

約数ペア:
[(1, 18740020), (2, 9370010), (4, 4685005), (5, 3748004), (10, 1874002), (13, 1441540), (20, 937001), (26, 720770), (52, 360385), (65, 288308), (130, 144154), (260, 72077)]

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