256401306

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{28661}}^1$

素因数の和:28747

約数の個数: 48

約数和(自身を含む): 643863168

約数和(自身を除く): 387461862

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 71, 126, 142, 213, 426, 497, 639, 994, 1278, 1491, 2982, 4473, 8946, 28661, 57322, 85983, 171966, 200627, 257949, 401254, 515898, 601881, 1203762, 1805643, 2034931, 3611286, 4069862, 6104793, 12209586, 14244517, 18314379, 28489034, 36628758, 42733551, 85467102, 128200653, 256401306]

約数ペア:

[(1, 256401306), (2, 128200653), (3, 85467102), (6, 42733551), (7, 36628758), (9, 28489034), (14, 18314379), (18, 14244517), (21, 12209586), (42, 6104793), (63, 4069862), (71, 3611286), (126, 2034931), (142, 1805643), (213, 1203762), (426, 601881), (497, 515898), (639, 401254), (994, 257949), (1278, 200627), (1491, 171966), (2982, 85983), (4473, 57322), (8946, 28661)]