261679400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{68863}}^1$

素因数の和:68898

約数の個数: 48

約数和(自身を含む): 640435200

約数和(自身を除く): 378755800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 68863, 137726, 275452, 344315, 550904, 688630, 1308397, 1377260, 1721575, 2616794, 2754520, 3443150, 5233588, 6541985, 6886300, 10467176, 13083970, 13772600, 26167940, 32709925, 52335880, 65419850, 130839700, 261679400]

約数ペア:

[(1, 261679400), (2, 130839700), (4, 65419850), (5, 52335880), (8, 32709925), (10, 26167940), (19, 13772600), (20, 13083970), (25, 10467176), (38, 6886300), (40, 6541985), (50, 5233588), (76, 3443150), (95, 2754520), (100, 2616794), (152, 1721575), (190, 1377260), (200, 1308397), (380, 688630), (475, 550904), (760, 344315), (950, 275452), (1900, 137726), (3800, 68863)]