20680072

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{9007}}^1$

素因数の和:9061

約数の個数: 32

約数和(自身を含む): 45400320

約数和(自身を除く): 24720248

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 574, 1148, 2296, 9007, 18014, 36028, 63049, 72056, 126098, 252196, 369287, 504392, 738574, 1477148, 2585009, 2954296, 5170018, 10340036, 20680072]

約数ペア:

[(1, 20680072), (2, 10340036), (4, 5170018), (7, 2954296), (8, 2585009), (14, 1477148), (28, 738574), (41, 504392), (56, 369287), (82, 252196), (164, 126098), (287, 72056), (328, 63049), (574, 36028), (1148, 18014), (2296, 9007)]