81165910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61027}}^1$

素因数の和:61060

約数の個数: 32

約数和(自身を含む): 175760640

約数和(自身を除く): 94594730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 61027, 122054, 305135, 427189, 610270, 854378, 1159513, 2135945, 2319026, 4271890, 5797565, 8116591, 11595130, 16233182, 40582955, 81165910]

約数ペア:

[(1, 81165910), (2, 40582955), (5, 16233182), (7, 11595130), (10, 8116591), (14, 5797565), (19, 4271890), (35, 2319026), (38, 2135945), (70, 1159513), (95, 854378), (133, 610270), (190, 427189), (266, 305135), (665, 122054), (1330, 61027)]