About the Number

2505990

2505989 ← → 2505991

2進数表記:1001100011110100000110

漢数字表記:二百五十万五千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 103 1 × 811 1

素因数の和:924
約数の個数: 32
約数和(自身を含む): 6080256
約数和(自身を除く): 3574266

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 811, 1030, 1545, 1622, 2433, 3090, 4055, 4866, 8110, 12165, 24330, 83533, 167066, 250599, 417665, 501198, 835330, 1252995, 2505990]

約数ペア:
[(1, 2505990), (2, 1252995), (3, 835330), (5, 501198), (6, 417665), (10, 250599), (15, 167066), (30, 83533), (103, 24330), (206, 12165), (309, 8110), (515, 4866), (618, 4055), (811, 3090), (1030, 2433), (1545, 1622)]

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