20206865

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1231}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 28651392

約数和(自身を除く): 8444527

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 1231, 2345, 3283, 6155, 8617, 16415, 43085, 60319, 82477, 301595, 412385, 577339, 2886695, 4041373, 20206865]

約数ペア:

[(1, 20206865), (5, 4041373), (7, 2886695), (35, 577339), (49, 412385), (67, 301595), (245, 82477), (335, 60319), (469, 43085), (1231, 16415), (2345, 8617), (3283, 6155)]