81161165

素因数分解:

$5^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 102114432

約数和(自身を除く): 20953267

約数列:

[1, 5, 37, 71, 167, 185, 355, 835, 1369, 2627, 6179, 6845, 11857, 13135, 30895, 59285, 97199, 228623, 438709, 485995, 1143115, 2193545, 16232233, 81161165]

約数ペア:

[(1, 81161165), (5, 16232233), (37, 2193545), (71, 1143115), (167, 485995), (185, 438709), (355, 228623), (835, 97199), (1369, 59285), (2627, 30895), (6179, 13135), (6845, 11857)]