About the Number

206821480

206821479 ← → 206821481

2進数表記:1100010100111101100001101000

漢数字表記:二億六百八十二万千四百八十

素因数分解:

2 3 × 5 1 × 743 1 × 6959 1

素因数の和:7713
約数の個数: 32
約数和(自身を含む): 466041600
約数和(自身を除く): 259220120

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 743, 1486, 2972, 3715, 5944, 6959, 7430, 13918, 14860, 27836, 29720, 34795, 55672, 69590, 139180, 278360, 5170537, 10341074, 20682148, 25852685, 41364296, 51705370, 103410740, 206821480]

約数ペア:
[(1, 206821480), (2, 103410740), (4, 51705370), (5, 41364296), (8, 25852685), (10, 20682148), (20, 10341074), (40, 5170537), (743, 278360), (1486, 139180), (2972, 69590), (3715, 55672), (5944, 34795), (6959, 29720), (7430, 27836), (13918, 14860)]

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