79883920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9161}}^1$

素因数の和:9283

約数の個数: 40

約数和(自身を含む): 187454520

約数和(自身を除く): 107570600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 9161, 18322, 36644, 45805, 73288, 91610, 146576, 183220, 366440, 732880, 998549, 1997098, 3994196, 4992745, 7988392, 9985490, 15976784, 19970980, 39941960, 79883920]

約数ペア:

[(1, 79883920), (2, 39941960), (4, 19970980), (5, 15976784), (8, 9985490), (10, 7988392), (16, 4992745), (20, 3994196), (40, 1997098), (80, 998549), (109, 732880), (218, 366440), (436, 183220), (545, 146576), (872, 91610), (1090, 73288), (1744, 45805), (2180, 36644), (4360, 18322), (8720, 9161)]