81320008

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18859}}^1$

素因数の和:18890

約数の個数: 48

約数和(自身を含む): 193503600

約数和(自身を除く): 112183592

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 392, 539, 616, 1078, 2156, 4312, 18859, 37718, 75436, 132013, 150872, 207449, 264026, 414898, 528052, 829796, 924091, 1056104, 1452143, 1659592, 1848182, 2904286, 3696364, 5808572, 7392728, 10165001, 11617144, 20330002, 40660004, 81320008]

約数ペア:

[(1, 81320008), (2, 40660004), (4, 20330002), (7, 11617144), (8, 10165001), (11, 7392728), (14, 5808572), (22, 3696364), (28, 2904286), (44, 1848182), (49, 1659592), (56, 1452143), (77, 1056104), (88, 924091), (98, 829796), (154, 528052), (196, 414898), (308, 264026), (392, 207449), (539, 150872), (616, 132013), (1078, 75436), (2156, 37718), (4312, 18859)]