257142004

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{14741}}^1$

素因数の和:14848

約数の個数: 36

約数和(自身を含む): 529385220

約数和(自身を除く): 272243216

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1246, 2492, 4361, 8722, 14741, 17444, 29482, 58964, 103187, 206374, 412748, 722309, 1311949, 1444618, 2623898, 2889236, 5247796, 9183643, 18367286, 36734572, 64285501, 128571002, 257142004]

約数ペア:

[(1, 257142004), (2, 128571002), (4, 64285501), (7, 36734572), (14, 18367286), (28, 9183643), (49, 5247796), (89, 2889236), (98, 2623898), (178, 1444618), (196, 1311949), (356, 722309), (623, 412748), (1246, 206374), (2492, 103187), (4361, 58964), (8722, 29482), (14741, 17444)]