81779061

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 144764928

約数和(自身を除く): 62985867

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 67, 91, 119, 201, 221, 263, 273, 357, 469, 663, 789, 871, 1139, 1407, 1547, 1841, 2613, 3417, 3419, 4471, 4641, 5523, 6097, 7973, 10257, 13413, 14807, 17621, 18291, 23919, 23933, 31297, 44421, 52863, 58123, 71799, 93891, 103649, 123347, 174369, 229073, 299557, 310947, 370041, 406861, 687219, 898671, 1220583, 1603511, 2096899, 3894241, 4810533, 6290697, 11682723, 27259687, 81779061]

約数ペア:

[(1, 81779061), (3, 27259687), (7, 11682723), (13, 6290697), (17, 4810533), (21, 3894241), (39, 2096899), (51, 1603511), (67, 1220583), (91, 898671), (119, 687219), (201, 406861), (221, 370041), (263, 310947), (273, 299557), (357, 229073), (469, 174369), (663, 123347), (789, 103649), (871, 93891), (1139, 71799), (1407, 58123), (1547, 52863), (1841, 44421), (2613, 31297), (3417, 23933), (3419, 23919), (4471, 18291), (4641, 17621), (5523, 14807), (6097, 13413), (7973, 10257)]