18321400

素因数分解:

$2^3\times 5^2\times {\mathrm{101}}^1\times {\mathrm{907}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 43066440

約数和(自身を除く): 24745040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 101, 200, 202, 404, 505, 808, 907, 1010, 1814, 2020, 2525, 3628, 4040, 4535, 5050, 7256, 9070, 10100, 18140, 20200, 22675, 36280, 45350, 90700, 91607, 181400, 183214, 366428, 458035, 732856, 916070, 1832140, 2290175, 3664280, 4580350, 9160700, 18321400]

約数ペア:

[(1, 18321400), (2, 9160700), (4, 4580350), (5, 3664280), (8, 2290175), (10, 1832140), (20, 916070), (25, 732856), (40, 458035), (50, 366428), (100, 183214), (101, 181400), (200, 91607), (202, 90700), (404, 45350), (505, 36280), (808, 22675), (907, 20200), (1010, 18140), (1814, 10100), (2020, 9070), (2525, 7256), (3628, 5050), (4040, 4535)]