8613780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{20509}}^1$

素因数の和:20528

約数の個数: 48

約数和(自身を含む): 27565440

約数和(自身を除く): 18951660

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, 20509, 41018, 61527, 82036, 102545, 123054, 143563, 205090, 246108, 287126, 307635, 410180, 430689, 574252, 615270, 717815, 861378, 1230540, 1435630, 1722756, 2153445, 2871260, 4306890, 8613780]

約数ペア:

[(1, 8613780), (2, 4306890), (3, 2871260), (4, 2153445), (5, 1722756), (6, 1435630), (7, 1230540), (10, 861378), (12, 717815), (14, 615270), (15, 574252), (20, 430689), (21, 410180), (28, 307635), (30, 287126), (35, 246108), (42, 205090), (60, 143563), (70, 123054), (84, 102545), (105, 82036), (140, 61527), (210, 41018), (420, 20509)]