18019904

素因数分解:

$2^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 112

約数和(自身を含む): 45110400

約数和(自身を除く): 27090496

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 29, 32, 38, 56, 58, 64, 73, 76, 112, 116, 133, 146, 152, 203, 224, 232, 266, 292, 304, 406, 448, 464, 511, 532, 551, 584, 608, 812, 928, 1022, 1064, 1102, 1168, 1216, 1387, 1624, 1856, 2044, 2117, 2128, 2204, 2336, 2774, 3248, 3857, 4088, 4234, 4256, 4408, 4672, 5548, 6496, 7714, 8176, 8468, 8512, 8816, 9709, 11096, 12992, 14819, 15428, 16352, 16936, 17632, 19418, 22192, 29638, 30856, 32704, 33872, 35264, 38836, 40223, 44384, 59276, 61712, 67744, 77672, 80446, 88768, 118552, 123424, 135488, 155344, 160892, 237104, 246848, 281561, 310688, 321784, 474208, 563122, 621376, 643568, 948416, 1126244, 1287136, 2252488, 2574272, 4504976, 9009952, 18019904]

約数ペア:

[(1, 18019904), (2, 9009952), (4, 4504976), (7, 2574272), (8, 2252488), (14, 1287136), (16, 1126244), (19, 948416), (28, 643568), (29, 621376), (32, 563122), (38, 474208), (56, 321784), (58, 310688), (64, 281561), (73, 246848), (76, 237104), (112, 160892), (116, 155344), (133, 135488), (146, 123424), (152, 118552), (203, 88768), (224, 80446), (232, 77672), (266, 67744), (292, 61712), (304, 59276), (406, 44384), (448, 40223), (464, 38836), (511, 35264), (532, 33872), (551, 32704), (584, 30856), (608, 29638), (812, 22192), (928, 19418), (1022, 17632), (1064, 16936), (1102, 16352), (1168, 15428), (1216, 14819), (1387, 12992), (1624, 11096), (1856, 9709), (2044, 8816), (2117, 8512), (2128, 8468), (2204, 8176), (2336, 7714), (2774, 6496), (3248, 5548), (3857, 4672), (4088, 4408), (4234, 4256)]