18385952

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 39354840

約数和(自身を除く): 20968888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 193, 208, 229, 386, 416, 458, 772, 916, 1544, 1832, 2509, 2977, 3088, 3664, 5018, 5954, 6176, 7328, 10036, 11908, 20072, 23816, 40144, 44197, 47632, 80288, 88394, 95264, 176788, 353576, 574561, 707152, 1149122, 1414304, 2298244, 4596488, 9192976, 18385952]

約数ペア:

[(1, 18385952), (2, 9192976), (4, 4596488), (8, 2298244), (13, 1414304), (16, 1149122), (26, 707152), (32, 574561), (52, 353576), (104, 176788), (193, 95264), (208, 88394), (229, 80288), (386, 47632), (416, 44197), (458, 40144), (772, 23816), (916, 20072), (1544, 11908), (1832, 10036), (2509, 7328), (2977, 6176), (3088, 5954), (3664, 5018)]