256421410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{4801}}^1$

素因数の和:4931

約数の個数: 48

約数和(自身を含む): 541953720

約数和(自身を除く): 285532310

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 109, 218, 245, 490, 545, 763, 1090, 1526, 3815, 4801, 5341, 7630, 9602, 10682, 24005, 26705, 33607, 48010, 53410, 67214, 168035, 235249, 336070, 470498, 523309, 1046618, 1176245, 2352490, 2616545, 3663163, 5233090, 7326326, 18315815, 25642141, 36631630, 51284282, 128210705, 256421410]

約数ペア:

[(1, 256421410), (2, 128210705), (5, 51284282), (7, 36631630), (10, 25642141), (14, 18315815), (35, 7326326), (49, 5233090), (70, 3663163), (98, 2616545), (109, 2352490), (218, 1176245), (245, 1046618), (490, 523309), (545, 470498), (763, 336070), (1090, 235249), (1526, 168035), (3815, 67214), (4801, 53410), (5341, 48010), (7630, 33607), (9602, 26705), (10682, 24005)]