13918420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1789}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 29320200

約数和(自身を除く): 15401780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1789, 1945, 3578, 3890, 7156, 7780, 8945, 17890, 35780, 695921, 1391842, 2783684, 3479605, 6959210, 13918420]

約数ペア:

[(1, 13918420), (2, 6959210), (4, 3479605), (5, 2783684), (10, 1391842), (20, 695921), (389, 35780), (778, 17890), (1556, 8945), (1789, 7780), (1945, 7156), (3578, 3890)]