81397185

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{439}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 133816320

約数和(自身を除く): 52419135

約数列:

[1, 3, 5, 15, 47, 141, 235, 263, 439, 705, 789, 1315, 1317, 2195, 3945, 6585, 12361, 20633, 37083, 61805, 61899, 103165, 115457, 185415, 309495, 346371, 577285, 1731855, 5426479, 16279437, 27132395, 81397185]

約数ペア:

[(1, 81397185), (3, 27132395), (5, 16279437), (15, 5426479), (47, 1731855), (141, 577285), (235, 346371), (263, 309495), (439, 185415), (705, 115457), (789, 103165), (1315, 61899), (1317, 61805), (2195, 37083), (3945, 20633), (6585, 12361)]