81745150

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 157181904

約数和(自身を除く): 75436754

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 193, 197, 215, 386, 394, 430, 965, 985, 1075, 1930, 1970, 2150, 4825, 4925, 8299, 8471, 9650, 9850, 16598, 16942, 38021, 41495, 42355, 76042, 82990, 84710, 190105, 207475, 211775, 380210, 414950, 423550, 950525, 1634903, 1901050, 3269806, 8174515, 16349030, 40872575, 81745150]

約数ペア:

[(1, 81745150), (2, 40872575), (5, 16349030), (10, 8174515), (25, 3269806), (43, 1901050), (50, 1634903), (86, 950525), (193, 423550), (197, 414950), (215, 380210), (386, 211775), (394, 207475), (430, 190105), (965, 84710), (985, 82990), (1075, 76042), (1930, 42355), (1970, 41495), (2150, 38021), (4825, 16942), (4925, 16598), (8299, 9850), (8471, 9650)]