20130278

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{281}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 38191824

約数和(自身を除く): 18061546

約数列:

[1, 2, 7, 14, 17, 34, 43, 49, 86, 98, 119, 238, 281, 301, 562, 602, 731, 833, 1462, 1666, 1967, 2107, 3934, 4214, 4777, 5117, 9554, 10234, 12083, 13769, 24166, 27538, 33439, 35819, 66878, 71638, 84581, 169162, 205411, 234073, 410822, 468146, 592067, 1184134, 1437877, 2875754, 10065139, 20130278]

約数ペア:

[(1, 20130278), (2, 10065139), (7, 2875754), (14, 1437877), (17, 1184134), (34, 592067), (43, 468146), (49, 410822), (86, 234073), (98, 205411), (119, 169162), (238, 84581), (281, 71638), (301, 66878), (562, 35819), (602, 33439), (731, 27538), (833, 24166), (1462, 13769), (1666, 12083), (1967, 10234), (2107, 9554), (3934, 5117), (4214, 4777)]