31120012

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{191}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 71350272

約数和(自身を除く): 40230260

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 191, 253, 308, 322, 382, 506, 529, 644, 764, 1012, 1058, 1337, 1771, 2101, 2116, 2674, 3542, 3703, 4202, 4393, 5348, 5819, 7084, 7406, 8404, 8786, 11638, 14707, 14812, 17572, 23276, 29414, 30751, 40733, 48323, 58828, 61502, 81466, 96646, 101039, 123004, 162932, 193292, 202078, 338261, 404156, 676522, 707273, 1111429, 1353044, 1414546, 2222858, 2829092, 4445716, 7780003, 15560006, 31120012]

約数ペア:

[(1, 31120012), (2, 15560006), (4, 7780003), (7, 4445716), (11, 2829092), (14, 2222858), (22, 1414546), (23, 1353044), (28, 1111429), (44, 707273), (46, 676522), (77, 404156), (92, 338261), (154, 202078), (161, 193292), (191, 162932), (253, 123004), (308, 101039), (322, 96646), (382, 81466), (506, 61502), (529, 58828), (644, 48323), (764, 40733), (1012, 30751), (1058, 29414), (1337, 23276), (1771, 17572), (2101, 14812), (2116, 14707), (2674, 11638), (3542, 8786), (3703, 8404), (4202, 7406), (4393, 7084), (5348, 5819)]