80818328

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{983}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 155865600

約数和(自身を除く): 75047272

約数列:

[1, 2, 4, 8, 43, 86, 172, 239, 344, 478, 956, 983, 1912, 1966, 3932, 7864, 10277, 20554, 41108, 42269, 82216, 84538, 169076, 234937, 338152, 469874, 939748, 1879496, 10102291, 20204582, 40409164, 80818328]

約数ペア:

[(1, 80818328), (2, 40409164), (4, 20204582), (8, 10102291), (43, 1879496), (86, 939748), (172, 469874), (239, 338152), (344, 234937), (478, 169076), (956, 84538), (983, 82216), (1912, 42269), (1966, 41108), (3932, 20554), (7864, 10277)]