80478145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{557}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 109921536

約数和(自身を除く): 29443391

約数列:

[1, 5, 11, 37, 55, 71, 185, 355, 407, 557, 781, 2035, 2627, 2785, 3905, 6127, 13135, 20609, 28897, 30635, 39547, 103045, 144485, 197735, 226699, 435017, 1133495, 1463239, 2175085, 7316195, 16095629, 80478145]

約数ペア:

[(1, 80478145), (5, 16095629), (11, 7316195), (37, 2175085), (55, 1463239), (71, 1133495), (185, 435017), (355, 226699), (407, 197735), (557, 144485), (781, 103045), (2035, 39547), (2627, 30635), (2785, 28897), (3905, 20609), (6127, 13135)]