257425630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{334319}}^1$

素因数の和:334344

約数の個数: 32

約数和(自身を含む): 577704960

約数和(自身を除く): 320279330

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 334319, 668638, 1671595, 2340233, 3343190, 3677509, 4680466, 7355018, 11701165, 18387545, 23402330, 25742563, 36775090, 51485126, 128712815, 257425630]

約数ペア:

[(1, 257425630), (2, 128712815), (5, 51485126), (7, 36775090), (10, 25742563), (11, 23402330), (14, 18387545), (22, 11701165), (35, 7355018), (55, 4680466), (70, 3677509), (77, 3343190), (110, 2340233), (154, 1671595), (385, 668638), (770, 334319)]