261137072

素因数分解:

$2^4\times 7^2\times {\mathrm{397}}^1\times {\mathrm{839}}^1$

素因数の和:1258

約数の個数: 60

約数和(自身を含む): 590743440

約数和(自身を除く): 329606368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 397, 784, 794, 839, 1588, 1678, 2779, 3176, 3356, 5558, 5873, 6352, 6712, 11116, 11746, 13424, 19453, 22232, 23492, 38906, 41111, 44464, 46984, 77812, 82222, 93968, 155624, 164444, 311248, 328888, 333083, 657776, 666166, 1332332, 2331581, 2664664, 4663162, 5329328, 9326324, 16321067, 18652648, 32642134, 37305296, 65284268, 130568536, 261137072]

約数ペア:

[(1, 261137072), (2, 130568536), (4, 65284268), (7, 37305296), (8, 32642134), (14, 18652648), (16, 16321067), (28, 9326324), (49, 5329328), (56, 4663162), (98, 2664664), (112, 2331581), (196, 1332332), (392, 666166), (397, 657776), (784, 333083), (794, 328888), (839, 311248), (1588, 164444), (1678, 155624), (2779, 93968), (3176, 82222), (3356, 77812), (5558, 46984), (5873, 44464), (6352, 41111), (6712, 38906), (11116, 23492), (11746, 22232), (13424, 19453)]