209049960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{248869}}^1$

素因数の和:248890

約数の個数: 64

約数和(自身を含む): 716745600

約数和(自身を除く): 507695640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 248869, 497738, 746607, 995476, 1244345, 1493214, 1742083, 1990952, 2488690, 2986428, 3484166, 3733035, 4977380, 5226249, 5972856, 6968332, 7466070, 8710415, 9954760, 10452498, 13936664, 14932140, 17420830, 20904996, 26131245, 29864280, 34841660, 41809992, 52262490, 69683320, 104524980, 209049960]

約数ペア:

[(1, 209049960), (2, 104524980), (3, 69683320), (4, 52262490), (5, 41809992), (6, 34841660), (7, 29864280), (8, 26131245), (10, 20904996), (12, 17420830), (14, 14932140), (15, 13936664), (20, 10452498), (21, 9954760), (24, 8710415), (28, 7466070), (30, 6968332), (35, 5972856), (40, 5226249), (42, 4977380), (56, 3733035), (60, 3484166), (70, 2986428), (84, 2488690), (105, 1990952), (120, 1742083), (140, 1493214), (168, 1244345), (210, 995476), (280, 746607), (420, 497738), (840, 248869)]