381777980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{188999}}^1$

素因数の和:189109

約数の個数: 24

約数和(自身を含む): 809676000

約数和(自身を除く): 427898020

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 188999, 377998, 755996, 944995, 1889990, 3779980, 19088899, 38177798, 76355596, 95444495, 190888990, 381777980]

約数ペア:

[(1, 381777980), (2, 190888990), (4, 95444495), (5, 76355596), (10, 38177798), (20, 19088899), (101, 3779980), (202, 1889990), (404, 944995), (505, 755996), (1010, 377998), (2020, 188999)]