28657684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 58222080

約数和(自身を除く): 29564396

約数列:

[1, 2, 4, 11, 22, 29, 37, 44, 58, 74, 116, 148, 319, 407, 607, 638, 814, 1073, 1214, 1276, 1628, 2146, 2428, 4292, 6677, 11803, 13354, 17603, 22459, 23606, 26708, 35206, 44918, 47212, 70412, 89836, 193633, 247049, 387266, 494098, 651311, 774532, 988196, 1302622, 2605244, 7164421, 14328842, 28657684]

約数ペア:

[(1, 28657684), (2, 14328842), (4, 7164421), (11, 2605244), (22, 1302622), (29, 988196), (37, 774532), (44, 651311), (58, 494098), (74, 387266), (116, 247049), (148, 193633), (319, 89836), (407, 70412), (607, 47212), (638, 44918), (814, 35206), (1073, 26708), (1214, 23606), (1276, 22459), (1628, 17603), (2146, 13354), (2428, 11803), (4292, 6677)]