78661768

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 149990400

約数和(自身を除く): 71328632

約数列:

[1, 2, 4, 8, 127, 139, 254, 278, 508, 556, 557, 1016, 1112, 1114, 2228, 4456, 17653, 35306, 70612, 70739, 77423, 141224, 141478, 154846, 282956, 309692, 565912, 619384, 9832721, 19665442, 39330884, 78661768]

約数ペア:

[(1, 78661768), (2, 39330884), (4, 19665442), (8, 9832721), (127, 619384), (139, 565912), (254, 309692), (278, 282956), (508, 154846), (556, 141478), (557, 141224), (1016, 77423), (1112, 70739), (1114, 70612), (2228, 35306), (4456, 17653)]