About the Number

12904880

12904879 ← → 12904881

2進数表記:110001001110100110110000

漢数字表記:千二百九十万四千八百八十

素因数分解:

2 4 × 5 1 × 97 1 × 1663 1

素因数の和:1773
約数の個数: 40
約数和(自身を含む): 30331392
約数和(自身を除く): 17426512

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1663, 1940, 3326, 3880, 6652, 7760, 8315, 13304, 16630, 26608, 33260, 66520, 133040, 161311, 322622, 645244, 806555, 1290488, 1613110, 2580976, 3226220, 6452440, 12904880]

約数ペア:
[(1, 12904880), (2, 6452440), (4, 3226220), (5, 2580976), (8, 1613110), (10, 1290488), (16, 806555), (20, 645244), (40, 322622), (80, 161311), (97, 133040), (194, 66520), (388, 33260), (485, 26608), (776, 16630), (970, 13304), (1552, 8315), (1663, 7760), (1940, 6652), (3326, 3880)]

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