28768005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{337}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 57368064

約数和(自身を除く): 28600059

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 271, 315, 337, 813, 1011, 1355, 1685, 1897, 2359, 2439, 3033, 4065, 5055, 5691, 7077, 9485, 11795, 12195, 15165, 17073, 21231, 28455, 35385, 85365, 91327, 106155, 273981, 456635, 639289, 821943, 1369905, 1917867, 3196445, 4109715, 5753601, 9589335, 28768005]

約数ペア:

[(1, 28768005), (3, 9589335), (5, 5753601), (7, 4109715), (9, 3196445), (15, 1917867), (21, 1369905), (35, 821943), (45, 639289), (63, 456635), (105, 273981), (271, 106155), (315, 91327), (337, 85365), (813, 35385), (1011, 28455), (1355, 21231), (1685, 17073), (1897, 15165), (2359, 12195), (2439, 11795), (3033, 9485), (4065, 7077), (5055, 5691)]