290192518

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{81929}}^1$

素因数の和:81972

約数の個数: 32

約数和(自身を含む): 566300160

約数和(自身を除く): 276107642

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 253, 322, 506, 1771, 3542, 81929, 163858, 573503, 901219, 1147006, 1802438, 1884367, 3768734, 6308533, 12617066, 13190569, 20728037, 26381138, 41456074, 145096259, 290192518]

約数ペア:

[(1, 290192518), (2, 145096259), (7, 41456074), (11, 26381138), (14, 20728037), (22, 13190569), (23, 12617066), (46, 6308533), (77, 3768734), (154, 1884367), (161, 1802438), (253, 1147006), (322, 901219), (506, 573503), (1771, 163858), (3542, 81929)]