215673780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{513509}}^1$

素因数の和:513528

約数の個数: 48

約数和(自身を含む): 690157440

約数和(自身を除く): 474483660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 513509, 1027018, 1540527, 2054036, 2567545, 3081054, 3594563, 5135090, 6162108, 7189126, 7702635, 10270180, 10783689, 14378252, 15405270, 17972815, 21567378, 30810540, 35945630, 43134756, 53918445, 71891260, 107836890, 215673780]

約数ペア:

[(1, 215673780), (2, 107836890), (3, 71891260), (4, 53918445), (5, 43134756), (6, 35945630), (7, 30810540), (10, 21567378), (12, 17972815), (14, 15405270), (15, 14378252), (20, 10783689), (21, 10270180), (28, 7702635), (30, 7189126), (35, 6162108), (42, 5135090), (60, 3594563), (70, 3081054), (84, 2567545), (105, 2054036), (140, 1540527), (210, 1027018), (420, 513509)]