About the Number

81030

81029 ← → 81031

2進数表記:10011110010000110

漢数字表記:八万千三十

素因数分解:

2 1 × 3 1 × 5 1 × 37 1 × 73 1

素因数の和:120
約数の個数: 32
約数和(自身を含む): 202464
約数和(自身を除く): 121434

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 37, 73, 74, 111, 146, 185, 219, 222, 365, 370, 438, 555, 730, 1095, 1110, 2190, 2701, 5402, 8103, 13505, 16206, 27010, 40515, 81030]

約数ペア:
[(1, 81030), (2, 40515), (3, 27010), (5, 16206), (6, 13505), (10, 8103), (15, 5402), (30, 2701), (37, 2190), (73, 1110), (74, 1095), (111, 730), (146, 555), (185, 438), (219, 370), (222, 365)]

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