256404848

素因数分解:

$2^4\times 7^3\times {\mathrm{19}}^1\times {\mathrm{2459}}^1$

素因数の和:2507

約数の個数: 80

約数和(自身を含む): 610080000

約数和(自身を除く): 353675152

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 56, 76, 98, 112, 133, 152, 196, 266, 304, 343, 392, 532, 686, 784, 931, 1064, 1372, 1862, 2128, 2459, 2744, 3724, 4918, 5488, 6517, 7448, 9836, 13034, 14896, 17213, 19672, 26068, 34426, 39344, 46721, 52136, 68852, 93442, 104272, 120491, 137704, 186884, 240982, 275408, 327047, 373768, 481964, 654094, 747536, 843437, 963928, 1308188, 1686874, 1927856, 2289329, 2616376, 3373748, 4578658, 5232752, 6747496, 9157316, 13494992, 16025303, 18314632, 32050606, 36629264, 64101212, 128202424, 256404848]

約数ペア:

[(1, 256404848), (2, 128202424), (4, 64101212), (7, 36629264), (8, 32050606), (14, 18314632), (16, 16025303), (19, 13494992), (28, 9157316), (38, 6747496), (49, 5232752), (56, 4578658), (76, 3373748), (98, 2616376), (112, 2289329), (133, 1927856), (152, 1686874), (196, 1308188), (266, 963928), (304, 843437), (343, 747536), (392, 654094), (532, 481964), (686, 373768), (784, 327047), (931, 275408), (1064, 240982), (1372, 186884), (1862, 137704), (2128, 120491), (2459, 104272), (2744, 93442), (3724, 68852), (4918, 52136), (5488, 46721), (6517, 39344), (7448, 34426), (9836, 26068), (13034, 19672), (14896, 17213)]