81877356

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1039}}^1$

素因数の和:1259

約数の個数: 72

約数和(自身を含む): 227136000

約数和(自身を除く): 145258644

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 199, 396, 398, 597, 796, 1039, 1194, 1791, 2078, 2189, 2388, 3117, 3582, 4156, 4378, 6234, 6567, 7164, 8756, 9351, 11429, 12468, 13134, 18702, 19701, 22858, 26268, 34287, 37404, 39402, 45716, 68574, 78804, 102861, 137148, 205722, 206761, 411444, 413522, 620283, 827044, 1240566, 1860849, 2274371, 2481132, 3721698, 4548742, 6823113, 7443396, 9097484, 13646226, 20469339, 27292452, 40938678, 81877356]

約数ペア:

[(1, 81877356), (2, 40938678), (3, 27292452), (4, 20469339), (6, 13646226), (9, 9097484), (11, 7443396), (12, 6823113), (18, 4548742), (22, 3721698), (33, 2481132), (36, 2274371), (44, 1860849), (66, 1240566), (99, 827044), (132, 620283), (198, 413522), (199, 411444), (396, 206761), (398, 205722), (597, 137148), (796, 102861), (1039, 78804), (1194, 68574), (1791, 45716), (2078, 39402), (2189, 37404), (2388, 34287), (3117, 26268), (3582, 22858), (4156, 19701), (4378, 18702), (6234, 13134), (6567, 12468), (7164, 11429), (8756, 9351)]