40455394

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20789}}^1$

素因数の和:20937

約数の個数: 16

約数和(自身を含む): 69854400

約数和(自身を除く): 29399006

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 20789, 41578, 145523, 291046, 2889671, 5779342, 20227697, 40455394]

約数ペア:

[(1, 40455394), (2, 20227697), (7, 5779342), (14, 2889671), (139, 291046), (278, 145523), (973, 41578), (1946, 20789)]