18518864

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 120

約数和(自身を含む): 47496960

約数和(自身を除く): 28978096

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 49, 52, 56, 79, 91, 92, 98, 104, 112, 158, 161, 182, 184, 196, 208, 299, 316, 322, 364, 368, 392, 553, 598, 632, 637, 644, 728, 784, 1027, 1106, 1127, 1196, 1264, 1274, 1288, 1456, 1817, 2054, 2093, 2212, 2254, 2392, 2548, 2576, 3634, 3871, 4108, 4186, 4424, 4508, 4784, 5096, 7189, 7268, 7742, 8216, 8372, 8848, 9016, 10192, 12719, 14378, 14536, 14651, 15484, 16432, 16744, 18032, 23621, 25438, 28756, 29072, 29302, 30968, 33488, 47242, 50323, 50876, 57512, 58604, 61936, 89033, 94484, 100646, 101752, 115024, 117208, 165347, 178066, 188968, 201292, 203504, 234416, 330694, 356132, 377936, 402584, 661388, 712264, 805168, 1157429, 1322776, 1424528, 2314858, 2645552, 4629716, 9259432, 18518864]

約数ペア:

[(1, 18518864), (2, 9259432), (4, 4629716), (7, 2645552), (8, 2314858), (13, 1424528), (14, 1322776), (16, 1157429), (23, 805168), (26, 712264), (28, 661388), (46, 402584), (49, 377936), (52, 356132), (56, 330694), (79, 234416), (91, 203504), (92, 201292), (98, 188968), (104, 178066), (112, 165347), (158, 117208), (161, 115024), (182, 101752), (184, 100646), (196, 94484), (208, 89033), (299, 61936), (316, 58604), (322, 57512), (364, 50876), (368, 50323), (392, 47242), (553, 33488), (598, 30968), (632, 29302), (637, 29072), (644, 28756), (728, 25438), (784, 23621), (1027, 18032), (1106, 16744), (1127, 16432), (1196, 15484), (1264, 14651), (1274, 14536), (1288, 14378), (1456, 12719), (1817, 10192), (2054, 9016), (2093, 8848), (2212, 8372), (2254, 8216), (2392, 7742), (2548, 7268), (2576, 7189), (3634, 5096), (3871, 4784), (4108, 4508), (4186, 4424)]