81504205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{463}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 110246400

約数和(自身を除く): 28742195

約数列:

[1, 5, 17, 19, 85, 95, 109, 323, 463, 545, 1615, 1853, 2071, 2315, 7871, 8797, 9265, 10355, 35207, 39355, 43985, 50467, 149549, 176035, 252335, 747745, 857939, 958873, 4289695, 4794365, 16300841, 81504205]

約数ペア:

[(1, 81504205), (5, 16300841), (17, 4794365), (19, 4289695), (85, 958873), (95, 857939), (109, 747745), (323, 252335), (463, 176035), (545, 149549), (1615, 50467), (1853, 43985), (2071, 39355), (2315, 35207), (7871, 10355), (8797, 9265)]