257415906

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{16319}}^1$

素因数の和:16574

約数の個数: 32

約数和(自身を含む): 564019200

約数和(自身を除く): 306603294

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 239, 478, 717, 1434, 2629, 5258, 7887, 15774, 16319, 32638, 48957, 97914, 179509, 359018, 538527, 1077054, 3900241, 7800482, 11700723, 23401446, 42902651, 85805302, 128707953, 257415906]

約数ペア:

[(1, 257415906), (2, 128707953), (3, 85805302), (6, 42902651), (11, 23401446), (22, 11700723), (33, 7800482), (66, 3900241), (239, 1077054), (478, 538527), (717, 359018), (1434, 179509), (2629, 97914), (5258, 48957), (7887, 32638), (15774, 16319)]