28071315

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 50450400

約数和(自身を除く): 22379085

約数列:

[1, 3, 5, 9, 15, 45, 59, 97, 109, 177, 291, 295, 327, 485, 531, 545, 873, 885, 981, 1455, 1635, 2655, 4365, 4905, 5723, 6431, 10573, 17169, 19293, 28615, 31719, 32155, 51507, 52865, 57879, 85845, 95157, 96465, 158595, 257535, 289395, 475785, 623807, 1871421, 3119035, 5614263, 9357105, 28071315]

約数ペア:

[(1, 28071315), (3, 9357105), (5, 5614263), (9, 3119035), (15, 1871421), (45, 623807), (59, 475785), (97, 289395), (109, 257535), (177, 158595), (291, 96465), (295, 95157), (327, 85845), (485, 57879), (531, 52865), (545, 51507), (873, 32155), (885, 31719), (981, 28615), (1455, 19293), (1635, 17169), (2655, 10573), (4365, 6431), (4905, 5723)]