201813780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{480509}}^1$

素因数の和:480528

約数の個数: 48

約数和(自身を含む): 645805440

約数和(自身を除く): 443991660

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, 480509, 961018, 1441527, 1922036, 2402545, 2883054, 3363563, 4805090, 5766108, 6727126, 7207635, 9610180, 10090689, 13454252, 14415270, 16817815, 20181378, 28830540, 33635630, 40362756, 50453445, 67271260, 100906890, 201813780]

約数ペア:

[(1, 201813780), (2, 100906890), (3, 67271260), (4, 50453445), (5, 40362756), (6, 33635630), (7, 28830540), (10, 20181378), (12, 16817815), (14, 14415270), (15, 13454252), (20, 10090689), (21, 9610180), (28, 7207635), (30, 6727126), (35, 5766108), (42, 4805090), (60, 3363563), (70, 2883054), (84, 2402545), (105, 1922036), (140, 1441527), (210, 961018), (420, 480509)]