20468940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3517}}^1$

素因数の和:3626

約数の個数: 48

約数和(自身を含む): 57920352

約数和(自身を除く): 37451412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3517, 5820, 7034, 10551, 14068, 17585, 21102, 35170, 42204, 52755, 70340, 105510, 211020, 341149, 682298, 1023447, 1364596, 1705745, 2046894, 3411490, 4093788, 5117235, 6822980, 10234470, 20468940]

約数ペア:

[(1, 20468940), (2, 10234470), (3, 6822980), (4, 5117235), (5, 4093788), (6, 3411490), (10, 2046894), (12, 1705745), (15, 1364596), (20, 1023447), (30, 682298), (60, 341149), (97, 211020), (194, 105510), (291, 70340), (388, 52755), (485, 42204), (582, 35170), (970, 21102), (1164, 17585), (1455, 14068), (1940, 10551), (2910, 7034), (3517, 5820)]