About the Number

13987020

13987019 ← → 13987021

2進数表記:110101010110110011001100

漢数字表記:千三百九十八万七千二十

素因数分解:

2 2 × 3 1 × 5 1 × 233117 1

素因数の和:233129
約数の個数: 24
約数和(自身を含む): 39163824
約数和(自身を除く): 25176804

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 233117, 466234, 699351, 932468, 1165585, 1398702, 2331170, 2797404, 3496755, 4662340, 6993510, 13987020]

約数ペア:
[(1, 13987020), (2, 6993510), (3, 4662340), (4, 3496755), (5, 2797404), (6, 2331170), (10, 1398702), (12, 1165585), (15, 932468), (20, 699351), (30, 466234), (60, 233117)]

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