About the Number

207201890

207201889 ← → 207201891

2進数表記:1100010110011010011001100010

漢数字表記:二億七百二十万千八百九十

素因数分解:

2 1 × 5 1 × 7 2 × 422861 1

素因数の和:422882
約数の個数: 24
約数和(自身を含む): 433856412
約数和(自身を除く): 226654522

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 422861, 845722, 2114305, 2960027, 4228610, 5920054, 14800135, 20720189, 29600270, 41440378, 103600945, 207201890]

約数ペア:
[(1, 207201890), (2, 103600945), (5, 41440378), (7, 29600270), (10, 20720189), (14, 14800135), (35, 5920054), (49, 4228610), (70, 2960027), (98, 2114305), (245, 845722), (490, 422861)]

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