49236580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 105840000

約数和(自身を除く): 56603420

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 199, 278, 356, 398, 445, 556, 695, 796, 890, 995, 1390, 1780, 1990, 2780, 3980, 12371, 17711, 24742, 27661, 35422, 49484, 55322, 61855, 70844, 88555, 110644, 123710, 138305, 177110, 247420, 276610, 354220, 553220, 2461829, 4923658, 9847316, 12309145, 24618290, 49236580]

約数ペア:

[(1, 49236580), (2, 24618290), (4, 12309145), (5, 9847316), (10, 4923658), (20, 2461829), (89, 553220), (139, 354220), (178, 276610), (199, 247420), (278, 177110), (356, 138305), (398, 123710), (445, 110644), (556, 88555), (695, 70844), (796, 61855), (890, 55322), (995, 49484), (1390, 35422), (1780, 27661), (1990, 24742), (2780, 17711), (3980, 12371)]