2008889285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43963}}^1$

素因数の和:44037

約数の個数: 32

約数和(自身を含む): 2806661760

約数和(自身を除く): 797772475

約数列:

[1, 5, 13, 19, 37, 65, 95, 185, 247, 481, 703, 1235, 2405, 3515, 9139, 43963, 45695, 219815, 571519, 835297, 1626631, 2857595, 4176485, 8133155, 10858861, 21146203, 30905989, 54294305, 105731015, 154529945, 401777857, 2008889285]

約数ペア:

[(1, 2008889285), (5, 401777857), (13, 154529945), (19, 105731015), (37, 54294305), (65, 30905989), (95, 21146203), (185, 10858861), (247, 8133155), (481, 4176485), (703, 2857595), (1235, 1626631), (2405, 835297), (3515, 571519), (9139, 219815), (43963, 45695)]