280008008

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{2017}}^1$

素因数の和:2134

約数の個数: 64

約数和(自身を含む): 625741440

約数和(自身を除く): 345733432

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 67, 74, 134, 148, 259, 268, 296, 469, 518, 536, 938, 1036, 1876, 2017, 2072, 2479, 3752, 4034, 4958, 8068, 9916, 14119, 16136, 17353, 19832, 28238, 34706, 56476, 69412, 74629, 112952, 135139, 138824, 149258, 270278, 298516, 522403, 540556, 597032, 945973, 1044806, 1081112, 1891946, 2089612, 3783892, 4179224, 5000143, 7567784, 10000286, 20000572, 35001001, 40001144, 70002002, 140004004, 280008008]

約数ペア:

[(1, 280008008), (2, 140004004), (4, 70002002), (7, 40001144), (8, 35001001), (14, 20000572), (28, 10000286), (37, 7567784), (56, 5000143), (67, 4179224), (74, 3783892), (134, 2089612), (148, 1891946), (259, 1081112), (268, 1044806), (296, 945973), (469, 597032), (518, 540556), (536, 522403), (938, 298516), (1036, 270278), (1876, 149258), (2017, 138824), (2072, 135139), (2479, 112952), (3752, 74629), (4034, 69412), (4958, 56476), (8068, 34706), (9916, 28238), (14119, 19832), (16136, 17353)]