256280668

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{223241}}^1$

素因数の和:223293

約数の個数: 24

約数和(自身を含む): 525065184

約数和(自身を除く): 268784516

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 223241, 446482, 892964, 1562687, 3125374, 6250748, 9152881, 18305762, 36611524, 64070167, 128140334, 256280668]

約数ペア:

[(1, 256280668), (2, 128140334), (4, 64070167), (7, 36611524), (14, 18305762), (28, 9152881), (41, 6250748), (82, 3125374), (164, 1562687), (287, 892964), (574, 446482), (1148, 223241)]