64471180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169661}}^1$

素因数の和:169689

約数の個数: 24

約数和(自身を含む): 142516080

約数和(自身を除く): 78044900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 169661, 339322, 678644, 848305, 1696610, 3223559, 3393220, 6447118, 12894236, 16117795, 32235590, 64471180]

約数ペア:

[(1, 64471180), (2, 32235590), (4, 16117795), (5, 12894236), (10, 6447118), (19, 3393220), (20, 3223559), (38, 1696610), (76, 848305), (95, 678644), (190, 339322), (380, 169661)]