81660425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{719}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 128563200

約数和(自身を除く): 46902775

約数列:

[1, 5, 7, 11, 25, 35, 55, 59, 77, 175, 275, 295, 385, 413, 649, 719, 1475, 1925, 2065, 3245, 3595, 4543, 5033, 7909, 10325, 16225, 17975, 22715, 25165, 39545, 42421, 55363, 113575, 125825, 197725, 212105, 276815, 296947, 466631, 1060525, 1384075, 1484735, 2333155, 3266417, 7423675, 11665775, 16332085, 81660425]

約数ペア:

[(1, 81660425), (5, 16332085), (7, 11665775), (11, 7423675), (25, 3266417), (35, 2333155), (55, 1484735), (59, 1384075), (77, 1060525), (175, 466631), (275, 296947), (295, 276815), (385, 212105), (413, 197725), (649, 125825), (719, 113575), (1475, 55363), (1925, 42421), (2065, 39545), (3245, 25165), (3595, 22715), (4543, 17975), (5033, 16225), (7909, 10325)]