199910425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 293731200

約数和(自身を除く): 93820775

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 199, 275, 281, 325, 715, 995, 1405, 2189, 2587, 3091, 3575, 3653, 4975, 7025, 10945, 12935, 15455, 18265, 28457, 40183, 54725, 55919, 64675, 77275, 91325, 142285, 200915, 279595, 615109, 711425, 726947, 1004575, 1397975, 3075545, 3634735, 7996417, 15377725, 18173675, 39982085, 199910425]

約数ペア:

[(1, 199910425), (5, 39982085), (11, 18173675), (13, 15377725), (25, 7996417), (55, 3634735), (65, 3075545), (143, 1397975), (199, 1004575), (275, 726947), (281, 711425), (325, 615109), (715, 279595), (995, 200915), (1405, 142285), (2189, 91325), (2587, 77275), (3091, 64675), (3575, 55919), (3653, 54725), (4975, 40183), (7025, 28457), (10945, 18265), (12935, 15455)]