1289764378

素因数分解:

$2^1\times 7^4\times {\mathrm{337}}^1\times {\mathrm{797}}^1$

素因数の和:1164

約数の個数: 40

約数和(自身を含む): 2266490772

約数和(自身を除く): 976726394

約数列:

[1, 2, 7, 14, 49, 98, 337, 343, 674, 686, 797, 1594, 2359, 2401, 4718, 4802, 5579, 11158, 16513, 33026, 39053, 78106, 115591, 231182, 268589, 273371, 537178, 546742, 809137, 1618274, 1880123, 1913597, 3760246, 3827194, 13160861, 26321722, 92126027, 184252054, 644882189, 1289764378]

約数ペア:

[(1, 1289764378), (2, 644882189), (7, 184252054), (14, 92126027), (49, 26321722), (98, 13160861), (337, 3827194), (343, 3760246), (674, 1913597), (686, 1880123), (797, 1618274), (1594, 809137), (2359, 546742), (2401, 537178), (4718, 273371), (4802, 268589), (5579, 231182), (11158, 115591), (16513, 78106), (33026, 39053)]