145283920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{16661}}^1$

素因数の和:16783

約数の個数: 40

約数和(自身を含む): 340904520

約数和(自身を除く): 195620600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 16661, 33322, 66644, 83305, 133288, 166610, 266576, 333220, 666440, 1332880, 1816049, 3632098, 7264196, 9080245, 14528392, 18160490, 29056784, 36320980, 72641960, 145283920]

約数ペア:

[(1, 145283920), (2, 72641960), (4, 36320980), (5, 29056784), (8, 18160490), (10, 14528392), (16, 9080245), (20, 7264196), (40, 3632098), (80, 1816049), (109, 1332880), (218, 666440), (436, 333220), (545, 266576), (872, 166610), (1090, 133288), (1744, 83305), (2180, 66644), (4360, 33322), (8720, 16661)]