20478136

素因数分解:

$2^3\times 7^1\times {\mathrm{503}}^1\times {\mathrm{727}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 23551304

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 503, 727, 1006, 1454, 2012, 2908, 3521, 4024, 5089, 5816, 7042, 10178, 14084, 20356, 28168, 40712, 365681, 731362, 1462724, 2559767, 2925448, 5119534, 10239068, 20478136]

約数ペア:

[(1, 20478136), (2, 10239068), (4, 5119534), (7, 2925448), (8, 2559767), (14, 1462724), (28, 731362), (56, 365681), (503, 40712), (727, 28168), (1006, 20356), (1454, 14084), (2012, 10178), (2908, 7042), (3521, 5816), (4024, 5089)]