20075545

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1223}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 28465344

約数和(自身を除く): 8389799

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 1223, 2345, 3283, 6115, 8561, 16415, 42805, 59927, 81941, 299635, 409705, 573587, 2867935, 4015109, 20075545]

約数ペア:

[(1, 20075545), (5, 4015109), (7, 2867935), (35, 573587), (49, 409705), (67, 299635), (245, 81941), (335, 59927), (469, 42805), (1223, 16415), (2345, 8561), (3283, 6115)]