205687575

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^2\times {\mathrm{1087}}^1$

素因数の和:1161

約数の個数: 54

約数和(自身を含む): 381902144

約数和(自身を除く): 176214569

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 841, 1087, 1305, 2175, 2523, 3261, 4205, 5435, 6525, 7569, 9783, 12615, 16305, 21025, 27175, 31523, 37845, 48915, 63075, 81525, 94569, 157615, 189225, 244575, 283707, 472845, 788075, 914167, 1418535, 2364225, 2742501, 4570835, 7092675, 8227503, 13712505, 22854175, 41137515, 68562525, 205687575]

約数ペア:

[(1, 205687575), (3, 68562525), (5, 41137515), (9, 22854175), (15, 13712505), (25, 8227503), (29, 7092675), (45, 4570835), (75, 2742501), (87, 2364225), (145, 1418535), (225, 914167), (261, 788075), (435, 472845), (725, 283707), (841, 244575), (1087, 189225), (1305, 157615), (2175, 94569), (2523, 81525), (3261, 63075), (4205, 48915), (5435, 37845), (6525, 31523), (7569, 27175), (9783, 21025), (12615, 16305)]