81532040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107279}}^1$

素因数の和:107309

約数の個数: 32

約数和(自身を含む): 193104000

約数和(自身を除く): 111571960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 107279, 214558, 429116, 536395, 858232, 1072790, 2038301, 2145580, 4076602, 4291160, 8153204, 10191505, 16306408, 20383010, 40766020, 81532040]

約数ペア:

[(1, 81532040), (2, 40766020), (4, 20383010), (5, 16306408), (8, 10191505), (10, 8153204), (19, 4291160), (20, 4076602), (38, 2145580), (40, 2038301), (76, 1072790), (95, 858232), (152, 536395), (190, 429116), (380, 214558), (760, 107279)]