209712250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{76259}}^1$

素因数の和:76287

約数の個数: 32

約数和(自身を含む): 428276160

約数和(自身を除く): 218563910

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 76259, 152518, 381295, 762590, 838849, 1677698, 1906475, 3812950, 4194245, 8388490, 9532375, 19064750, 20971225, 41942450, 104856125, 209712250]

約数ペア:

[(1, 209712250), (2, 104856125), (5, 41942450), (10, 20971225), (11, 19064750), (22, 9532375), (25, 8388490), (50, 4194245), (55, 3812950), (110, 1906475), (125, 1677698), (250, 838849), (275, 762590), (550, 381295), (1375, 152518), (2750, 76259)]