About the Number

201720990

201720989 ← → 201720991

2進数表記:1100000001100000010010011110

漢数字表記:二億百七十二万九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 6724033 1

素因数の和:6724043
約数の個数: 16
約数和(自身を含む): 484130448
約数和(自身を除く): 282409458

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 6724033, 13448066, 20172099, 33620165, 40344198, 67240330, 100860495, 201720990]

約数ペア:
[(1, 201720990), (2, 100860495), (3, 67240330), (5, 40344198), (6, 33620165), (10, 20172099), (15, 13448066), (30, 6724033)]

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