53677640

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2087}}^1$

素因数の和:2741

約数の個数: 32

約数和(自身を含む): 121020480

約数和(自身を除く): 67342840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2087, 2572, 3215, 4174, 5144, 6430, 8348, 10435, 12860, 16696, 20870, 25720, 41740, 83480, 1341941, 2683882, 5367764, 6709705, 10735528, 13419410, 26838820, 53677640]

約数ペア:

[(1, 53677640), (2, 26838820), (4, 13419410), (5, 10735528), (8, 6709705), (10, 5367764), (20, 2683882), (40, 1341941), (643, 83480), (1286, 41740), (2087, 25720), (2572, 20870), (3215, 16696), (4174, 12860), (5144, 10435), (6430, 8348)]