289380091

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{641}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 401655744

約数和(自身を除く): 112275653

約数列:

[1, 7, 11, 13, 41, 77, 91, 121, 143, 287, 451, 533, 641, 847, 1001, 1573, 3157, 3731, 4487, 4961, 5863, 7051, 8333, 11011, 26281, 34727, 41041, 49357, 58331, 64493, 77561, 91663, 183967, 289091, 341653, 451451, 542927, 641641, 1008293, 2023637, 2391571, 3180001, 3758183, 7058051, 22260007, 26307281, 41340013, 289380091]

約数ペア:

[(1, 289380091), (7, 41340013), (11, 26307281), (13, 22260007), (41, 7058051), (77, 3758183), (91, 3180001), (121, 2391571), (143, 2023637), (287, 1008293), (451, 641641), (533, 542927), (641, 451451), (847, 341653), (1001, 289091), (1573, 183967), (3157, 91663), (3731, 77561), (4487, 64493), (4961, 58331), (5863, 49357), (7051, 41041), (8333, 34727), (11011, 26281)]