About the Number

18900490

18900489 ← → 18900491

2進数表記:1001000000110011000001010

漢数字表記:千八百九十万四百九十

素因数分解:

2 1 × 5 1 × 7 1 × 193 1 × 1399 1

素因数の和:1606
約数の個数: 32
約数和(自身を含む): 39110400
約数和(自身を除く): 20209910

約数列:
[1, 2, 5, 7, 10, 14, 35, 70, 193, 386, 965, 1351, 1399, 1930, 2702, 2798, 6755, 6995, 9793, 13510, 13990, 19586, 48965, 97930, 270007, 540014, 1350035, 1890049, 2700070, 3780098, 9450245, 18900490]

約数ペア:
[(1, 18900490), (2, 9450245), (5, 3780098), (7, 2700070), (10, 1890049), (14, 1350035), (35, 540014), (70, 270007), (193, 97930), (386, 48965), (965, 19586), (1351, 13990), (1399, 13510), (1930, 9793), (2702, 6995), (2798, 6755)]

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