256486514

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 413780400

約数和(自身を除く): 157293886

約数列:

[1, 2, 17, 34, 149, 197, 257, 298, 394, 514, 2533, 3349, 4369, 5066, 6698, 8738, 29353, 38293, 50629, 58706, 76586, 101258, 499001, 650981, 860693, 998002, 1301962, 1721386, 7543721, 15087442, 128243257, 256486514]

約数ペア:

[(1, 256486514), (2, 128243257), (17, 15087442), (34, 7543721), (149, 1721386), (197, 1301962), (257, 998002), (298, 860693), (394, 650981), (514, 499001), (2533, 101258), (3349, 76586), (4369, 58706), (5066, 50629), (6698, 38293), (8738, 29353)]