20208400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2659}}^1$

素因数の和:2696

約数の個数: 60

約数和(自身を含む): 51125200

約数和(自身を除く): 30916800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2659, 3800, 5318, 7600, 10636, 13295, 21272, 26590, 42544, 50521, 53180, 66475, 101042, 106360, 132950, 202084, 212720, 252605, 265900, 404168, 505210, 531800, 808336, 1010420, 1063600, 1263025, 2020840, 2526050, 4041680, 5052100, 10104200, 20208400]

約数ペア:

[(1, 20208400), (2, 10104200), (4, 5052100), (5, 4041680), (8, 2526050), (10, 2020840), (16, 1263025), (19, 1063600), (20, 1010420), (25, 808336), (38, 531800), (40, 505210), (50, 404168), (76, 265900), (80, 252605), (95, 212720), (100, 202084), (152, 132950), (190, 106360), (200, 101042), (304, 66475), (380, 53180), (400, 50521), (475, 42544), (760, 26590), (950, 21272), (1520, 13295), (1900, 10636), (2659, 7600), (3800, 5318)]