1279783946

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{8641}}^1$

素因数の和:8870

約数の個数: 32

約数和(自身を含む): 2240006400

約数和(自身を除く): 960222454

約数列:

[1, 2, 7, 14, 71, 142, 149, 298, 497, 994, 1043, 2086, 8641, 10579, 17282, 21158, 60487, 74053, 120974, 148106, 613511, 1227022, 1287509, 2575018, 4294577, 8589154, 9012563, 18025126, 91413139, 182826278, 639891973, 1279783946]

約数ペア:

[(1, 1279783946), (2, 639891973), (7, 182826278), (14, 91413139), (71, 18025126), (142, 9012563), (149, 8589154), (298, 4294577), (497, 2575018), (994, 1287509), (1043, 1227022), (2086, 613511), (8641, 148106), (10579, 120974), (17282, 74053), (21158, 60487)]