1991399624

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 3870720000

約数和(自身を除く): 1879320376

約数列:

[1, 2, 4, 8, 59, 118, 127, 139, 236, 239, 254, 278, 472, 478, 508, 556, 956, 1016, 1112, 1912, 7493, 8201, 14101, 14986, 16402, 17653, 28202, 29972, 30353, 32804, 33221, 35306, 56404, 59944, 60706, 65608, 66442, 70612, 112808, 121412, 132884, 141224, 242824, 265768, 1041527, 1790827, 1960039, 2083054, 3581654, 3920078, 4166108, 4219067, 7163308, 7840156, 8332216, 8438134, 14326616, 15680312, 16876268, 33752536, 248924953, 497849906, 995699812, 1991399624]

約数ペア:

[(1, 1991399624), (2, 995699812), (4, 497849906), (8, 248924953), (59, 33752536), (118, 16876268), (127, 15680312), (139, 14326616), (236, 8438134), (239, 8332216), (254, 7840156), (278, 7163308), (472, 4219067), (478, 4166108), (508, 3920078), (556, 3581654), (956, 2083054), (1016, 1960039), (1112, 1790827), (1912, 1041527), (7493, 265768), (8201, 242824), (14101, 141224), (14986, 132884), (16402, 121412), (17653, 112808), (28202, 70612), (29972, 66442), (30353, 65608), (32804, 60706), (33221, 59944), (35306, 56404)]