18731216

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 80

約数和(自身を含む): 44044800

約数和(自身を除く): 25313584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 73, 79, 112, 116, 146, 158, 203, 232, 292, 316, 406, 464, 511, 553, 584, 632, 812, 1022, 1106, 1168, 1264, 1624, 2044, 2117, 2212, 2291, 3248, 4088, 4234, 4424, 4582, 5767, 8176, 8468, 8848, 9164, 11534, 14819, 16037, 16936, 18328, 23068, 29638, 32074, 33872, 36656, 40369, 46136, 59276, 64148, 80738, 92272, 118552, 128296, 161476, 167243, 237104, 256592, 322952, 334486, 645904, 668972, 1170701, 1337944, 2341402, 2675888, 4682804, 9365608, 18731216]

約数ペア:

[(1, 18731216), (2, 9365608), (4, 4682804), (7, 2675888), (8, 2341402), (14, 1337944), (16, 1170701), (28, 668972), (29, 645904), (56, 334486), (58, 322952), (73, 256592), (79, 237104), (112, 167243), (116, 161476), (146, 128296), (158, 118552), (203, 92272), (232, 80738), (292, 64148), (316, 59276), (406, 46136), (464, 40369), (511, 36656), (553, 33872), (584, 32074), (632, 29638), (812, 23068), (1022, 18328), (1106, 16936), (1168, 16037), (1264, 14819), (1624, 11534), (2044, 9164), (2117, 8848), (2212, 8468), (2291, 8176), (3248, 5767), (4088, 4582), (4234, 4424)]