20775315

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 17835117

約数列:

[1, 3, 5, 11, 15, 33, 37, 41, 55, 83, 111, 123, 165, 185, 205, 249, 407, 415, 451, 555, 615, 913, 1221, 1245, 1353, 1517, 2035, 2255, 2739, 3071, 3403, 4551, 4565, 6105, 6765, 7585, 9213, 10209, 13695, 15355, 16687, 17015, 22755, 33781, 37433, 46065, 50061, 51045, 83435, 101343, 112299, 125911, 168905, 187165, 250305, 377733, 506715, 561495, 629555, 1385021, 1888665, 4155063, 6925105, 20775315]

約数ペア:

[(1, 20775315), (3, 6925105), (5, 4155063), (11, 1888665), (15, 1385021), (33, 629555), (37, 561495), (41, 506715), (55, 377733), (83, 250305), (111, 187165), (123, 168905), (165, 125911), (185, 112299), (205, 101343), (249, 83435), (407, 51045), (415, 50061), (451, 46065), (555, 37433), (615, 33781), (913, 22755), (1221, 17015), (1245, 16687), (1353, 15355), (1517, 13695), (2035, 10209), (2255, 9213), (2739, 7585), (3071, 6765), (3403, 6105), (4551, 4565)]