31720956

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{263}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 81755520

約数和(自身を除く): 50034564

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 38, 46, 57, 69, 76, 92, 114, 138, 228, 263, 276, 437, 526, 529, 789, 874, 1052, 1058, 1311, 1578, 1587, 1748, 2116, 2622, 3156, 3174, 4997, 5244, 6049, 6348, 9994, 10051, 12098, 14991, 18147, 19988, 20102, 24196, 29982, 30153, 36294, 40204, 59964, 60306, 72588, 114931, 120612, 139127, 229862, 278254, 344793, 417381, 459724, 556508, 689586, 834762, 1379172, 1669524, 2643413, 5286826, 7930239, 10573652, 15860478, 31720956]

約数ペア:

[(1, 31720956), (2, 15860478), (3, 10573652), (4, 7930239), (6, 5286826), (12, 2643413), (19, 1669524), (23, 1379172), (38, 834762), (46, 689586), (57, 556508), (69, 459724), (76, 417381), (92, 344793), (114, 278254), (138, 229862), (228, 139127), (263, 120612), (276, 114931), (437, 72588), (526, 60306), (529, 59964), (789, 40204), (874, 36294), (1052, 30153), (1058, 29982), (1311, 24196), (1578, 20102), (1587, 19988), (1748, 18147), (2116, 14991), (2622, 12098), (3156, 10051), (3174, 9994), (4997, 6348), (5244, 6049)]