20157740900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1665929}}^1$

素因数の和:1665965

約数の個数: 54

約数和(自身を含む): 48080405730

約数和(自身を除く): 27922664830

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 220, 242, 275, 484, 550, 605, 1100, 1210, 2420, 3025, 6050, 12100, 1665929, 3331858, 6663716, 8329645, 16659290, 18325219, 33318580, 36650438, 41648225, 73300876, 83296450, 91626095, 166592900, 183252190, 201577409, 366504380, 403154818, 458130475, 806309636, 916260950, 1007887045, 1832521900, 2015774090, 4031548180, 5039435225, 10078870450, 20157740900]

約数ペア:

[(1, 20157740900), (2, 10078870450), (4, 5039435225), (5, 4031548180), (10, 2015774090), (11, 1832521900), (20, 1007887045), (22, 916260950), (25, 806309636), (44, 458130475), (50, 403154818), (55, 366504380), (100, 201577409), (110, 183252190), (121, 166592900), (220, 91626095), (242, 83296450), (275, 73300876), (484, 41648225), (550, 36650438), (605, 33318580), (1100, 18325219), (1210, 16659290), (2420, 8329645), (3025, 6663716), (6050, 3331858), (12100, 1665929)]