78734187

素因数分解:

$3^7\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 139596800

約数和(自身を除く): 60862613

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 139, 189, 243, 259, 333, 417, 567, 729, 777, 973, 999, 1251, 1701, 2187, 2331, 2919, 2997, 3753, 5103, 5143, 6993, 8757, 8991, 11259, 15309, 15429, 20979, 26271, 26973, 33777, 36001, 46287, 62937, 78813, 80919, 101331, 108003, 138861, 188811, 236439, 303993, 324009, 416583, 566433, 709317, 972027, 1249749, 2127951, 2916081, 3749247, 8748243, 11247741, 26244729, 78734187]

約数ペア:

[(1, 78734187), (3, 26244729), (7, 11247741), (9, 8748243), (21, 3749247), (27, 2916081), (37, 2127951), (63, 1249749), (81, 972027), (111, 709317), (139, 566433), (189, 416583), (243, 324009), (259, 303993), (333, 236439), (417, 188811), (567, 138861), (729, 108003), (777, 101331), (973, 80919), (999, 78813), (1251, 62937), (1701, 46287), (2187, 36001), (2331, 33777), (2919, 26973), (2997, 26271), (3753, 20979), (5103, 15429), (5143, 15309), (6993, 11259), (8757, 8991)]