18280724

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 41559840

約数和(自身を除く): 23279116

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 61, 77, 98, 122, 139, 154, 196, 244, 278, 308, 427, 539, 556, 671, 854, 973, 1078, 1342, 1529, 1708, 1946, 2156, 2684, 2989, 3058, 3892, 4697, 5978, 6116, 6811, 8479, 9394, 10703, 11956, 13622, 16958, 18788, 21406, 27244, 32879, 33916, 42812, 59353, 65758, 74921, 93269, 118706, 131516, 149842, 186538, 237412, 299684, 373076, 415471, 652883, 830942, 1305766, 1661884, 2611532, 4570181, 9140362, 18280724]

約数ペア:

[(1, 18280724), (2, 9140362), (4, 4570181), (7, 2611532), (11, 1661884), (14, 1305766), (22, 830942), (28, 652883), (44, 415471), (49, 373076), (61, 299684), (77, 237412), (98, 186538), (122, 149842), (139, 131516), (154, 118706), (196, 93269), (244, 74921), (278, 65758), (308, 59353), (427, 42812), (539, 33916), (556, 32879), (671, 27244), (854, 21406), (973, 18788), (1078, 16958), (1342, 13622), (1529, 11956), (1708, 10703), (1946, 9394), (2156, 8479), (2684, 6811), (2989, 6116), (3058, 5978), (3892, 4697)]