205164025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 292838400

約数和(自身を除く): 87674375

約数列:

[1, 5, 11, 23, 25, 55, 115, 163, 199, 253, 275, 575, 815, 995, 1265, 1793, 2189, 3749, 4075, 4577, 4975, 6325, 8965, 10945, 18745, 22885, 32437, 41239, 44825, 50347, 54725, 93725, 114425, 162185, 206195, 251735, 356807, 746051, 810925, 1030975, 1258675, 1784035, 3730255, 8206561, 8920175, 18651275, 41032805, 205164025]

約数ペア:

[(1, 205164025), (5, 41032805), (11, 18651275), (23, 8920175), (25, 8206561), (55, 3730255), (115, 1784035), (163, 1258675), (199, 1030975), (253, 810925), (275, 746051), (575, 356807), (815, 251735), (995, 206195), (1265, 162185), (1793, 114425), (2189, 93725), (3749, 54725), (4075, 50347), (4577, 44825), (4975, 41239), (6325, 32437), (8965, 22885), (10945, 18745)]