260538376

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 574865280

約数和(自身を除く): 314326904

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 257, 301, 344, 421, 514, 602, 842, 1028, 1204, 1684, 1799, 2056, 2408, 2947, 3368, 3598, 5894, 7196, 11051, 11788, 14392, 18103, 22102, 23576, 36206, 44204, 72412, 77357, 88408, 108197, 126721, 144824, 154714, 216394, 253442, 309428, 432788, 506884, 618856, 757379, 865576, 1013768, 1514758, 3029516, 4652471, 6059032, 9304942, 18609884, 32567297, 37219768, 65134594, 130269188, 260538376]

約数ペア:

[(1, 260538376), (2, 130269188), (4, 65134594), (7, 37219768), (8, 32567297), (14, 18609884), (28, 9304942), (43, 6059032), (56, 4652471), (86, 3029516), (172, 1514758), (257, 1013768), (301, 865576), (344, 757379), (421, 618856), (514, 506884), (602, 432788), (842, 309428), (1028, 253442), (1204, 216394), (1684, 154714), (1799, 144824), (2056, 126721), (2408, 108197), (2947, 88408), (3368, 77357), (3598, 72412), (5894, 44204), (7196, 36206), (11051, 23576), (11788, 22102), (14392, 18103)]