28256220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156979}}^1$

素因数の和:156994

約数の個数: 36

約数和(自身を含む): 85711080

約数和(自身を除く): 57454860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156979, 313958, 470937, 627916, 784895, 941874, 1412811, 1569790, 1883748, 2354685, 2825622, 3139580, 4709370, 5651244, 7064055, 9418740, 14128110, 28256220]

約数ペア:

[(1, 28256220), (2, 14128110), (3, 9418740), (4, 7064055), (5, 5651244), (6, 4709370), (9, 3139580), (10, 2825622), (12, 2354685), (15, 1883748), (18, 1569790), (20, 1412811), (30, 941874), (36, 784895), (45, 627916), (60, 470937), (90, 313958), (180, 156979)]