15729245

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 24076800

約数和(自身を除く): 8347555

約数列:

[1, 5, 7, 19, 31, 35, 49, 95, 109, 133, 155, 217, 245, 545, 589, 665, 763, 931, 1085, 1519, 2071, 2945, 3379, 3815, 4123, 4655, 5341, 7595, 10355, 14497, 16895, 20615, 23653, 26705, 28861, 64201, 72485, 101479, 118265, 144305, 165571, 321005, 449407, 507395, 827855, 2247035, 3145849, 15729245]

約数ペア:

[(1, 15729245), (5, 3145849), (7, 2247035), (19, 827855), (31, 507395), (35, 449407), (49, 321005), (95, 165571), (109, 144305), (133, 118265), (155, 101479), (217, 72485), (245, 64201), (545, 28861), (589, 26705), (665, 23653), (763, 20615), (931, 16895), (1085, 14497), (1519, 10355), (2071, 7595), (2945, 5341), (3379, 4655), (3815, 4123)]