51287940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{25903}}^1$

素因数の和:25929

約数の個数: 72

約数和(自身を含む): 169723008

約数和(自身を除く): 118435068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 25903, 51806, 77709, 103612, 129515, 155418, 233127, 259030, 284933, 310836, 388545, 466254, 518060, 569866, 777090, 854799, 932508, 1139732, 1165635, 1424665, 1554180, 1709598, 2331270, 2564397, 2849330, 3419196, 4273995, 4662540, 5128794, 5698660, 8547990, 10257588, 12821985, 17095980, 25643970, 51287940]

約数ペア:

[(1, 51287940), (2, 25643970), (3, 17095980), (4, 12821985), (5, 10257588), (6, 8547990), (9, 5698660), (10, 5128794), (11, 4662540), (12, 4273995), (15, 3419196), (18, 2849330), (20, 2564397), (22, 2331270), (30, 1709598), (33, 1554180), (36, 1424665), (44, 1165635), (45, 1139732), (55, 932508), (60, 854799), (66, 777090), (90, 569866), (99, 518060), (110, 466254), (132, 388545), (165, 310836), (180, 284933), (198, 259030), (220, 233127), (330, 155418), (396, 129515), (495, 103612), (660, 77709), (990, 51806), (1980, 25903)]