12776980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5861}}^1$

素因数の和:5979

約数の個数: 24

約数和(自身を含む): 27082440

約数和(自身を除く): 14305460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 5861, 11722, 23444, 29305, 58610, 117220, 638849, 1277698, 2555396, 3194245, 6388490, 12776980]

約数ペア:

[(1, 12776980), (2, 6388490), (4, 3194245), (5, 2555396), (10, 1277698), (20, 638849), (109, 117220), (218, 58610), (436, 29305), (545, 23444), (1090, 11722), (2180, 5861)]