261447216

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{320401}}^1$

素因数の和:320429

約数の個数: 40

約数和(自身を含む): 715137264

約数和(自身を除く): 453690048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816, 320401, 640802, 961203, 1281604, 1922406, 2563208, 3844812, 5126416, 5446817, 7689624, 10893634, 15379248, 16340451, 21787268, 32680902, 43574536, 65361804, 87149072, 130723608, 261447216]

約数ペア:

[(1, 261447216), (2, 130723608), (3, 87149072), (4, 65361804), (6, 43574536), (8, 32680902), (12, 21787268), (16, 16340451), (17, 15379248), (24, 10893634), (34, 7689624), (48, 5446817), (51, 5126416), (68, 3844812), (102, 2563208), (136, 1922406), (204, 1281604), (272, 961203), (408, 640802), (816, 320401)]