81519956

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4943}}^1$

素因数の和:5004

約数の個数: 48

約数和(自身を含む): 177192960

約数和(自身を除く): 95673004

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 434, 532, 589, 868, 1178, 2356, 4123, 4943, 8246, 9886, 16492, 19772, 34601, 69202, 93917, 138404, 153233, 187834, 306466, 375668, 612932, 657419, 1072631, 1314838, 2145262, 2629676, 2911427, 4290524, 5822854, 11645708, 20379989, 40759978, 81519956]

約数ペア:

[(1, 81519956), (2, 40759978), (4, 20379989), (7, 11645708), (14, 5822854), (19, 4290524), (28, 2911427), (31, 2629676), (38, 2145262), (62, 1314838), (76, 1072631), (124, 657419), (133, 612932), (217, 375668), (266, 306466), (434, 187834), (532, 153233), (589, 138404), (868, 93917), (1178, 69202), (2356, 34601), (4123, 19772), (4943, 16492), (8246, 9886)]