256338628

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{22717}}^1$

素因数の和:22772

約数の個数: 48

約数和(自身を含む): 569949184

約数和(自身を除く): 313610556

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 2821, 5642, 11284, 22717, 45434, 90868, 159019, 295321, 318038, 590642, 636076, 704227, 1181284, 1408454, 2067247, 2816908, 4134494, 4929589, 8268988, 9154951, 9859178, 18309902, 19718356, 36619804, 64084657, 128169314, 256338628]

約数ペア:

[(1, 256338628), (2, 128169314), (4, 64084657), (7, 36619804), (13, 19718356), (14, 18309902), (26, 9859178), (28, 9154951), (31, 8268988), (52, 4929589), (62, 4134494), (91, 2816908), (124, 2067247), (182, 1408454), (217, 1181284), (364, 704227), (403, 636076), (434, 590642), (806, 318038), (868, 295321), (1612, 159019), (2821, 90868), (5642, 45434), (11284, 22717)]