20287270

素因数分解:

$2^1\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1987}}^1$

素因数の和:3015

約数の個数: 16

約数和(自身を含む): 36571248

約数和(自身を除く): 16283978

約数列:

[1, 2, 5, 10, 1021, 1987, 2042, 3974, 5105, 9935, 10210, 19870, 2028727, 4057454, 10143635, 20287270]

約数ペア:

[(1, 20287270), (2, 10143635), (5, 4057454), (10, 2028727), (1021, 19870), (1987, 10210), (2042, 9935), (3974, 5105)]