820105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:97

約数の個数: 32

約数和(自身を含む): 1225728

約数和(自身を除く): 405623

約数列:

[1, 5, 11, 13, 31, 37, 55, 65, 143, 155, 185, 341, 403, 407, 481, 715, 1147, 1705, 2015, 2035, 2405, 4433, 5291, 5735, 12617, 14911, 22165, 26455, 63085, 74555, 164021, 820105]

約数ペア:

[(1, 820105), (5, 164021), (11, 74555), (13, 63085), (31, 26455), (37, 22165), (55, 14911), (65, 12617), (143, 5735), (155, 5291), (185, 4433), (341, 2405), (403, 2035), (407, 2015), (481, 1705), (715, 1147)]