287966300

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{20717}}^1$

素因数の和:20870

約数の個数: 36

約数和(自身を含む): 629412840

約数和(自身を除く): 341446540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2780, 3475, 6950, 13900, 20717, 41434, 82868, 103585, 207170, 414340, 517925, 1035850, 2071700, 2879663, 5759326, 11518652, 14398315, 28796630, 57593260, 71991575, 143983150, 287966300]

約数ペア:

[(1, 287966300), (2, 143983150), (4, 71991575), (5, 57593260), (10, 28796630), (20, 14398315), (25, 11518652), (50, 5759326), (100, 2879663), (139, 2071700), (278, 1035850), (556, 517925), (695, 414340), (1390, 207170), (2780, 103585), (3475, 82868), (6950, 41434), (13900, 20717)]