19502820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1117}}^1$

素因数の和:1229

約数の個数: 72

約数和(自身を含む): 59821944

約数和(自身を除く): 40319124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1117, 1164, 1455, 1746, 1940, 2234, 2910, 3351, 3492, 4365, 4468, 5585, 5820, 6702, 8730, 10053, 11170, 13404, 16755, 17460, 20106, 22340, 33510, 40212, 50265, 67020, 100530, 108349, 201060, 216698, 325047, 433396, 541745, 650094, 975141, 1083490, 1300188, 1625235, 1950282, 2166980, 3250470, 3900564, 4875705, 6500940, 9751410, 19502820]

約数ペア:

[(1, 19502820), (2, 9751410), (3, 6500940), (4, 4875705), (5, 3900564), (6, 3250470), (9, 2166980), (10, 1950282), (12, 1625235), (15, 1300188), (18, 1083490), (20, 975141), (30, 650094), (36, 541745), (45, 433396), (60, 325047), (90, 216698), (97, 201060), (180, 108349), (194, 100530), (291, 67020), (388, 50265), (485, 40212), (582, 33510), (873, 22340), (970, 20106), (1117, 17460), (1164, 16755), (1455, 13404), (1746, 11170), (1940, 10053), (2234, 8730), (2910, 6702), (3351, 5820), (3492, 5585), (4365, 4468)]