82190980

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 175996800

約数和(自身を除く): 93805820

約数列:

[1, 2, 4, 5, 10, 20, 107, 193, 199, 214, 386, 398, 428, 535, 772, 796, 965, 995, 1070, 1930, 1990, 2140, 3860, 3980, 20651, 21293, 38407, 41302, 42586, 76814, 82604, 85172, 103255, 106465, 153628, 192035, 206510, 212930, 384070, 413020, 425860, 768140, 4109549, 8219098, 16438196, 20547745, 41095490, 82190980]

約数ペア:

[(1, 82190980), (2, 41095490), (4, 20547745), (5, 16438196), (10, 8219098), (20, 4109549), (107, 768140), (193, 425860), (199, 413020), (214, 384070), (386, 212930), (398, 206510), (428, 192035), (535, 153628), (772, 106465), (796, 103255), (965, 85172), (995, 82604), (1070, 76814), (1930, 42586), (1990, 41302), (2140, 38407), (3860, 21293), (3980, 20651)]