20009774950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1914811}}^1$

素因数の和:1914853

約数の個数: 48

約数和(自身を含む): 42738603840

約数和(自身を除く): 22728828890

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 190, 209, 275, 418, 475, 550, 950, 1045, 2090, 5225, 10450, 1914811, 3829622, 9574055, 19148110, 21062921, 36381409, 42125842, 47870275, 72762818, 95740550, 105314605, 181907045, 210629210, 363814090, 400195499, 526573025, 800390998, 909535225, 1053146050, 1819070450, 2000977495, 4001954990, 10004887475, 20009774950]

約数ペア:

[(1, 20009774950), (2, 10004887475), (5, 4001954990), (10, 2000977495), (11, 1819070450), (19, 1053146050), (22, 909535225), (25, 800390998), (38, 526573025), (50, 400195499), (55, 363814090), (95, 210629210), (110, 181907045), (190, 105314605), (209, 95740550), (275, 72762818), (418, 47870275), (475, 42125842), (550, 36381409), (950, 21062921), (1045, 19148110), (2090, 9574055), (5225, 3829622), (10450, 1914811)]