268555280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{9787}}^1$

素因数の和:9821

約数の個数: 80

約数和(自身を含む): 728227200

約数和(自身を除く): 459671920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 9787, 13720, 19574, 27440, 39148, 48935, 68509, 78296, 97870, 137018, 156592, 195740, 274036, 342545, 391480, 479563, 548072, 685090, 782960, 959126, 1096144, 1370180, 1918252, 2397815, 2740360, 3356941, 3836504, 4795630, 5480720, 6713882, 7673008, 9591260, 13427764, 16784705, 19182520, 26855528, 33569410, 38365040, 53711056, 67138820, 134277640, 268555280]

約数ペア:

[(1, 268555280), (2, 134277640), (4, 67138820), (5, 53711056), (7, 38365040), (8, 33569410), (10, 26855528), (14, 19182520), (16, 16784705), (20, 13427764), (28, 9591260), (35, 7673008), (40, 6713882), (49, 5480720), (56, 4795630), (70, 3836504), (80, 3356941), (98, 2740360), (112, 2397815), (140, 1918252), (196, 1370180), (245, 1096144), (280, 959126), (343, 782960), (392, 685090), (490, 548072), (560, 479563), (686, 391480), (784, 342545), (980, 274036), (1372, 195740), (1715, 156592), (1960, 137018), (2744, 97870), (3430, 78296), (3920, 68509), (5488, 48935), (6860, 39148), (9787, 27440), (13720, 19574)]