28267288

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 65894400

約数和(自身を除く): 37627112

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 857, 868, 1064, 1178, 1714, 1736, 2356, 3428, 4123, 4712, 5999, 6856, 8246, 11998, 16283, 16492, 23996, 26567, 32566, 32984, 47992, 53134, 65132, 106268, 113981, 130264, 185969, 212536, 227962, 371938, 455924, 504773, 743876, 911848, 1009546, 1487752, 2019092, 3533411, 4038184, 7066822, 14133644, 28267288]

約数ペア:

[(1, 28267288), (2, 14133644), (4, 7066822), (7, 4038184), (8, 3533411), (14, 2019092), (19, 1487752), (28, 1009546), (31, 911848), (38, 743876), (56, 504773), (62, 455924), (76, 371938), (124, 227962), (133, 212536), (152, 185969), (217, 130264), (248, 113981), (266, 106268), (434, 65132), (532, 53134), (589, 47992), (857, 32984), (868, 32566), (1064, 26567), (1178, 23996), (1714, 16492), (1736, 16283), (2356, 11998), (3428, 8246), (4123, 6856), (4712, 5999)]