18871660

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9161}}^1$

素因数の和:9273

約数の個数: 24

約数和(自身を含む): 40019616

約数和(自身を除く): 21147956

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9161, 18322, 36644, 45805, 91610, 183220, 943583, 1887166, 3774332, 4717915, 9435830, 18871660]

約数ペア:

[(1, 18871660), (2, 9435830), (4, 4717915), (5, 3774332), (10, 1887166), (20, 943583), (103, 183220), (206, 91610), (412, 45805), (515, 36644), (1030, 18322), (2060, 9161)]