18664688

素因数分解:

$2^4\times 7^3\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:227

約数の個数: 80

約数和(自身を含む): 44640000

約数和(自身を除く): 25975312

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 56, 76, 98, 112, 133, 152, 179, 196, 266, 304, 343, 358, 392, 532, 686, 716, 784, 931, 1064, 1253, 1372, 1432, 1862, 2128, 2506, 2744, 2864, 3401, 3724, 5012, 5488, 6517, 6802, 7448, 8771, 10024, 13034, 13604, 14896, 17542, 20048, 23807, 26068, 27208, 35084, 47614, 52136, 54416, 61397, 70168, 95228, 104272, 122794, 140336, 166649, 190456, 245588, 333298, 380912, 491176, 666596, 982352, 1166543, 1333192, 2333086, 2666384, 4666172, 9332344, 18664688]

約数ペア:

[(1, 18664688), (2, 9332344), (4, 4666172), (7, 2666384), (8, 2333086), (14, 1333192), (16, 1166543), (19, 982352), (28, 666596), (38, 491176), (49, 380912), (56, 333298), (76, 245588), (98, 190456), (112, 166649), (133, 140336), (152, 122794), (179, 104272), (196, 95228), (266, 70168), (304, 61397), (343, 54416), (358, 52136), (392, 47614), (532, 35084), (686, 27208), (716, 26068), (784, 23807), (931, 20048), (1064, 17542), (1253, 14896), (1372, 13604), (1432, 13034), (1862, 10024), (2128, 8771), (2506, 7448), (2744, 6802), (2864, 6517), (3401, 5488), (3724, 5012)]