6990.00000000

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{37}}^2\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 72

約数和(自身を含む): 134734320

約数和(自身を除く): 78788766

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 49, 74, 98, 111, 139, 147, 222, 259, 278, 294, 417, 518, 777, 834, 973, 1369, 1554, 1813, 1946, 2738, 2919, 3626, 4107, 5143, 5439, 5838, 6811, 8214, 9583, 10286, 10878, 13622, 15429, 19166, 20433, 28749, 30858, 36001, 40866, 57498, 67081, 72002, 108003, 134162, 190291, 201243, 216006, 252007, 380582, 402486, 504014, 570873, 756021, 1141746, 1332037, 1512042, 2664074, 3996111, 7992222, 9324259, 18648518, 27972777, 55945554]

約数ペア:

[(1, 55945554), (2, 27972777), (3, 18648518), (6, 9324259), (7, 7992222), (14, 3996111), (21, 2664074), (37, 1512042), (42, 1332037), (49, 1141746), (74, 756021), (98, 570873), (111, 504014), (139, 402486), (147, 380582), (222, 252007), (259, 216006), (278, 201243), (294, 190291), (417, 134162), (518, 108003), (777, 72002), (834, 67081), (973, 57498), (1369, 40866), (1554, 36001), (1813, 30858), (1946, 28749), (2738, 20433), (2919, 19166), (3626, 15429), (4107, 13622), (5143, 10878), (5439, 10286), (5838, 9583), (6811, 8214)]