20512894610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{747827}}^1$

素因数の和:748058

約数の個数: 32

約数和(自身を含む): 39951963072

約数和(自身を除く): 19439068462

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 211, 422, 1055, 2110, 2743, 5486, 13715, 27430, 747827, 1495654, 3739135, 7478270, 9721751, 19443502, 48608755, 97217510, 157791497, 315582994, 788957485, 1577914970, 2051289461, 4102578922, 10256447305, 20512894610]

約数ペア:

[(1, 20512894610), (2, 10256447305), (5, 4102578922), (10, 2051289461), (13, 1577914970), (26, 788957485), (65, 315582994), (130, 157791497), (211, 97217510), (422, 48608755), (1055, 19443502), (2110, 9721751), (2743, 7478270), (5486, 3739135), (13715, 1495654), (27430, 747827)]