18790376

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 41040000

約数和(自身を除く): 22249624

約数列:

[1, 2, 4, 8, 11, 22, 29, 37, 44, 58, 74, 88, 116, 148, 199, 232, 296, 319, 398, 407, 638, 796, 814, 1073, 1276, 1592, 1628, 2146, 2189, 2552, 3256, 4292, 4378, 5771, 7363, 8584, 8756, 11542, 11803, 14726, 17512, 23084, 23606, 29452, 46168, 47212, 58904, 63481, 80993, 94424, 126962, 161986, 213527, 253924, 323972, 427054, 507848, 647944, 854108, 1708216, 2348797, 4697594, 9395188, 18790376]

約数ペア:

[(1, 18790376), (2, 9395188), (4, 4697594), (8, 2348797), (11, 1708216), (22, 854108), (29, 647944), (37, 507848), (44, 427054), (58, 323972), (74, 253924), (88, 213527), (116, 161986), (148, 126962), (199, 94424), (232, 80993), (296, 63481), (319, 58904), (398, 47212), (407, 46168), (638, 29452), (796, 23606), (814, 23084), (1073, 17512), (1276, 14726), (1592, 11803), (1628, 11542), (2146, 8756), (2189, 8584), (2552, 7363), (3256, 5771), (4292, 4378)]