About the Number

55000981

55000980 ← → 55000982

2進数表記:11010001110011111110010101

漢数字表記:五千五百万九百八十一

素因数分解:

7 2 × 23 1 × 37 1 × 1319 1

素因数の和:1393
約数の個数: 24
約数和(自身を含む): 68618880
約数和(自身を除く): 13617899

約数列:
[1, 7, 23, 37, 49, 161, 259, 851, 1127, 1319, 1813, 5957, 9233, 30337, 41699, 48803, 64631, 212359, 341621, 1122469, 1486513, 2391347, 7857283, 55000981]

約数ペア:
[(1, 55000981), (7, 7857283), (23, 2391347), (37, 1486513), (49, 1122469), (161, 341621), (259, 212359), (851, 64631), (1127, 48803), (1319, 41699), (1813, 30337), (5957, 9233)]

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