28289205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2946

約数の個数: 48

約数和(自身を含む): 57867264

約数和(自身を除く): 29578059

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 155, 217, 279, 315, 465, 651, 1085, 1395, 1953, 2897, 3255, 8691, 9765, 14485, 20279, 26073, 43455, 60837, 89807, 101395, 130365, 182511, 269421, 304185, 449035, 628649, 808263, 912555, 1347105, 1885947, 3143245, 4041315, 5657841, 9429735, 28289205]

約数ペア:

[(1, 28289205), (3, 9429735), (5, 5657841), (7, 4041315), (9, 3143245), (15, 1885947), (21, 1347105), (31, 912555), (35, 808263), (45, 628649), (63, 449035), (93, 304185), (105, 269421), (155, 182511), (217, 130365), (279, 101395), (315, 89807), (465, 60837), (651, 43455), (1085, 26073), (1395, 20279), (1953, 14485), (2897, 9765), (3255, 8691)]