13198840

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1061}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 29820960

約数和(自身を除く): 16622120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1061, 1244, 1555, 2122, 2488, 3110, 4244, 5305, 6220, 8488, 10610, 12440, 21220, 42440, 329971, 659942, 1319884, 1649855, 2639768, 3299710, 6599420, 13198840]

約数ペア:

[(1, 13198840), (2, 6599420), (4, 3299710), (5, 2639768), (8, 1649855), (10, 1319884), (20, 659942), (40, 329971), (311, 42440), (622, 21220), (1061, 12440), (1244, 10610), (1555, 8488), (2122, 6220), (2488, 5305), (3110, 4244)]