31279985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 44323200

約数和(自身を除く): 13043215

約数列:

[1, 5, 11, 19, 37, 55, 95, 185, 209, 407, 703, 809, 1045, 2035, 3515, 4045, 7733, 8899, 15371, 29933, 38665, 44495, 76855, 149665, 169081, 329263, 568727, 845405, 1646315, 2843635, 6255997, 31279985]

約数ペア:

[(1, 31279985), (5, 6255997), (11, 2843635), (19, 1646315), (37, 845405), (55, 568727), (95, 329263), (185, 169081), (209, 149665), (407, 76855), (703, 44495), (809, 38665), (1045, 29933), (2035, 15371), (3515, 8899), (4045, 7733)]