28124236

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 60673536

約数和(自身を除く): 32549300

約数列:

[1, 2, 4, 7, 14, 28, 43, 47, 49, 71, 86, 94, 98, 142, 172, 188, 196, 284, 301, 329, 497, 602, 658, 994, 1204, 1316, 1988, 2021, 2107, 2303, 3053, 3337, 3479, 4042, 4214, 4606, 6106, 6674, 6958, 8084, 8428, 9212, 12212, 13348, 13916, 14147, 21371, 23359, 28294, 42742, 46718, 56588, 85484, 93436, 99029, 143491, 149597, 163513, 198058, 286982, 299194, 327026, 396116, 573964, 598388, 654052, 1004437, 2008874, 4017748, 7031059, 14062118, 28124236]

約数ペア:

[(1, 28124236), (2, 14062118), (4, 7031059), (7, 4017748), (14, 2008874), (28, 1004437), (43, 654052), (47, 598388), (49, 573964), (71, 396116), (86, 327026), (94, 299194), (98, 286982), (142, 198058), (172, 163513), (188, 149597), (196, 143491), (284, 99029), (301, 93436), (329, 85484), (497, 56588), (602, 46718), (658, 42742), (994, 28294), (1204, 23359), (1316, 21371), (1988, 14147), (2021, 13916), (2107, 13348), (2303, 12212), (3053, 9212), (3337, 8428), (3479, 8084), (4042, 6958), (4214, 6674), (4606, 6106)]