2640708

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{499}}^1$

素因数の和:526

約数の個数: 72

約数和(自身を含む): 7980000

約数和(自身を除く): 5339292

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 499, 588, 756, 882, 998, 1323, 1497, 1764, 1996, 2646, 2994, 3493, 4491, 5292, 5988, 6986, 8982, 10479, 13473, 13972, 17964, 20958, 24451, 26946, 31437, 41916, 48902, 53892, 62874, 73353, 94311, 97804, 125748, 146706, 188622, 220059, 293412, 377244, 440118, 660177, 880236, 1320354, 2640708]

約数ペア:

[(1, 2640708), (2, 1320354), (3, 880236), (4, 660177), (6, 440118), (7, 377244), (9, 293412), (12, 220059), (14, 188622), (18, 146706), (21, 125748), (27, 97804), (28, 94311), (36, 73353), (42, 62874), (49, 53892), (54, 48902), (63, 41916), (84, 31437), (98, 26946), (108, 24451), (126, 20958), (147, 17964), (189, 13972), (196, 13473), (252, 10479), (294, 8982), (378, 6986), (441, 5988), (499, 5292), (588, 4491), (756, 3493), (882, 2994), (998, 2646), (1323, 1996), (1497, 1764)]