19945728

素因数分解:

$2^8\times 3^2\times {\mathrm{11}}^1\times {\mathrm{787}}^1$

素因数の和:820

約数の個数: 108

約数和(自身を含む): 62816208

約数和(自身を除く): 42870480

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 256, 264, 288, 352, 384, 396, 528, 576, 704, 768, 787, 792, 1056, 1152, 1408, 1574, 1584, 2112, 2304, 2361, 2816, 3148, 3168, 4224, 4722, 6296, 6336, 7083, 8448, 8657, 9444, 12592, 12672, 14166, 17314, 18888, 25184, 25344, 25971, 28332, 34628, 37776, 50368, 51942, 56664, 69256, 75552, 77913, 100736, 103884, 113328, 138512, 151104, 155826, 201472, 207768, 226656, 277024, 302208, 311652, 415536, 453312, 554048, 604416, 623304, 831072, 906624, 1108096, 1246608, 1662144, 1813248, 2216192, 2493216, 3324288, 4986432, 6648576, 9972864, 19945728]

約数ペア:

[(1, 19945728), (2, 9972864), (3, 6648576), (4, 4986432), (6, 3324288), (8, 2493216), (9, 2216192), (11, 1813248), (12, 1662144), (16, 1246608), (18, 1108096), (22, 906624), (24, 831072), (32, 623304), (33, 604416), (36, 554048), (44, 453312), (48, 415536), (64, 311652), (66, 302208), (72, 277024), (88, 226656), (96, 207768), (99, 201472), (128, 155826), (132, 151104), (144, 138512), (176, 113328), (192, 103884), (198, 100736), (256, 77913), (264, 75552), (288, 69256), (352, 56664), (384, 51942), (396, 50368), (528, 37776), (576, 34628), (704, 28332), (768, 25971), (787, 25344), (792, 25184), (1056, 18888), (1152, 17314), (1408, 14166), (1574, 12672), (1584, 12592), (2112, 9444), (2304, 8657), (2361, 8448), (2816, 7083), (3148, 6336), (3168, 6296), (4224, 4722)]