28080724

素因数分解:

$2^2\times 7^3\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:333

約数の個数: 48

約数和(自身を含む): 58172800

約数和(自身を除く): 30092076

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 194, 196, 211, 343, 388, 422, 679, 686, 844, 1358, 1372, 1477, 2716, 2954, 4753, 5908, 9506, 10339, 19012, 20467, 20678, 33271, 40934, 41356, 66542, 72373, 81868, 133084, 143269, 144746, 286538, 289492, 573076, 1002883, 2005766, 4011532, 7020181, 14040362, 28080724]

約数ペア:

[(1, 28080724), (2, 14040362), (4, 7020181), (7, 4011532), (14, 2005766), (28, 1002883), (49, 573076), (97, 289492), (98, 286538), (194, 144746), (196, 143269), (211, 133084), (343, 81868), (388, 72373), (422, 66542), (679, 41356), (686, 40934), (844, 33271), (1358, 20678), (1372, 20467), (1477, 19012), (2716, 10339), (2954, 9506), (4753, 5908)]