278545212

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{9907}}^1$

素因数の和:9999

約数の個数: 72

約数和(自身を含む): 779006592

約数和(自身を除く): 500461380

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 71, 99, 132, 142, 198, 213, 284, 396, 426, 639, 781, 852, 1278, 1562, 2343, 2556, 3124, 4686, 7029, 9372, 9907, 14058, 19814, 28116, 29721, 39628, 59442, 89163, 108977, 118884, 178326, 217954, 326931, 356652, 435908, 653862, 703397, 980793, 1307724, 1406794, 1961586, 2110191, 2813588, 3923172, 4220382, 6330573, 7737367, 8440764, 12661146, 15474734, 23212101, 25322292, 30949468, 46424202, 69636303, 92848404, 139272606, 278545212]

約数ペア:

[(1, 278545212), (2, 139272606), (3, 92848404), (4, 69636303), (6, 46424202), (9, 30949468), (11, 25322292), (12, 23212101), (18, 15474734), (22, 12661146), (33, 8440764), (36, 7737367), (44, 6330573), (66, 4220382), (71, 3923172), (99, 2813588), (132, 2110191), (142, 1961586), (198, 1406794), (213, 1307724), (284, 980793), (396, 703397), (426, 653862), (639, 435908), (781, 356652), (852, 326931), (1278, 217954), (1562, 178326), (2343, 118884), (2556, 108977), (3124, 89163), (4686, 59442), (7029, 39628), (9372, 29721), (9907, 28116), (14058, 19814)]