12766460

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1861}}^1$

素因数の和:1891

約数の個数: 48

約数和(自身を含む): 31281600

約数和(自身を除く): 18515140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1861, 3430, 3722, 6860, 7444, 9305, 13027, 18610, 26054, 37220, 52108, 65135, 91189, 130270, 182378, 260540, 364756, 455945, 638323, 911890, 1276646, 1823780, 2553292, 3191615, 6383230, 12766460]

約数ペア:

[(1, 12766460), (2, 6383230), (4, 3191615), (5, 2553292), (7, 1823780), (10, 1276646), (14, 911890), (20, 638323), (28, 455945), (35, 364756), (49, 260540), (70, 182378), (98, 130270), (140, 91189), (196, 65135), (245, 52108), (343, 37220), (490, 26054), (686, 18610), (980, 13027), (1372, 9305), (1715, 7444), (1861, 6860), (3430, 3722)]