About the Number

2980005

2980004 ← → 2980006

2進数表記:1011010111100010100101

漢数字表記:二百九十八万五

素因数分解:

3 1 × 5 1 × 7 1 × 101 1 × 281 1

素因数の和:397
約数の個数: 32
約数和(自身を含む): 5522688
約数和(自身を除く): 2542683

約数列:
[1, 3, 5, 7, 15, 21, 35, 101, 105, 281, 303, 505, 707, 843, 1405, 1515, 1967, 2121, 3535, 4215, 5901, 9835, 10605, 28381, 29505, 85143, 141905, 198667, 425715, 596001, 993335, 2980005]

約数ペア:
[(1, 2980005), (3, 993335), (5, 596001), (7, 425715), (15, 198667), (21, 141905), (35, 85143), (101, 29505), (105, 28381), (281, 10605), (303, 9835), (505, 5901), (707, 4215), (843, 3535), (1405, 2121), (1515, 1967)]

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