20548400

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1093}}^1$

素因数の和:1158

約数の個数: 60

約数和(自身を含む): 50464032

約数和(自身を除く): 29915632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1093, 1175, 1880, 2186, 2350, 3760, 4372, 4700, 5465, 8744, 9400, 10930, 17488, 18800, 21860, 27325, 43720, 51371, 54650, 87440, 102742, 109300, 205484, 218600, 256855, 410968, 437200, 513710, 821936, 1027420, 1284275, 2054840, 2568550, 4109680, 5137100, 10274200, 20548400]

約数ペア:

[(1, 20548400), (2, 10274200), (4, 5137100), (5, 4109680), (8, 2568550), (10, 2054840), (16, 1284275), (20, 1027420), (25, 821936), (40, 513710), (47, 437200), (50, 410968), (80, 256855), (94, 218600), (100, 205484), (188, 109300), (200, 102742), (235, 87440), (376, 54650), (400, 51371), (470, 43720), (752, 27325), (940, 21860), (1093, 18800), (1175, 17488), (1880, 10930), (2186, 9400), (2350, 8744), (3760, 5465), (4372, 4700)]