20175485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 8129155

約数列:

[1, 5, 11, 23, 41, 55, 115, 205, 253, 389, 451, 943, 1265, 1945, 2255, 4279, 4715, 8947, 10373, 15949, 21395, 44735, 51865, 79745, 98417, 175439, 366827, 492085, 877195, 1834135, 4035097, 20175485]

約数ペア:

[(1, 20175485), (5, 4035097), (11, 1834135), (23, 877195), (41, 492085), (55, 366827), (115, 175439), (205, 98417), (253, 79745), (389, 51865), (451, 44735), (943, 21395), (1265, 15949), (1945, 10373), (2255, 8947), (4279, 4715)]