40564697480

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1534217}}^1$

素因数の和:1534889

約数の個数: 32

約数和(自身を含む): 91408708440

約数和(自身を除く): 50844010960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 26440, 1534217, 3068434, 6136868, 7671085, 12273736, 15342170, 30684340, 61368680, 1014117437, 2028234874, 4056469748, 5070587185, 8112939496, 10141174370, 20282348740, 40564697480]

約数ペア:

[(1, 40564697480), (2, 20282348740), (4, 10141174370), (5, 8112939496), (8, 5070587185), (10, 4056469748), (20, 2028234874), (40, 1014117437), (661, 61368680), (1322, 30684340), (2644, 15342170), (3305, 12273736), (5288, 7671085), (6610, 6136868), (13220, 3068434), (26440, 1534217)]