123489520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20047}}^1$

素因数の和:20078

約数の個数: 80

約数和(自身を含む): 357977088

約数和(自身を除く): 234487568

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 20047, 40094, 80188, 100235, 140329, 160376, 200470, 220517, 280658, 320752, 400940, 441034, 561316, 701645, 801880, 882068, 1102585, 1122632, 1403290, 1543619, 1603760, 1764136, 2205170, 2245264, 2806580, 3087238, 3528272, 4410340, 5613160, 6174476, 7718095, 8820680, 11226320, 12348952, 15436190, 17641360, 24697904, 30872380, 61744760, 123489520]

約数ペア:

[(1, 123489520), (2, 61744760), (4, 30872380), (5, 24697904), (7, 17641360), (8, 15436190), (10, 12348952), (11, 11226320), (14, 8820680), (16, 7718095), (20, 6174476), (22, 5613160), (28, 4410340), (35, 3528272), (40, 3087238), (44, 2806580), (55, 2245264), (56, 2205170), (70, 1764136), (77, 1603760), (80, 1543619), (88, 1403290), (110, 1122632), (112, 1102585), (140, 882068), (154, 801880), (176, 701645), (220, 561316), (280, 441034), (308, 400940), (385, 320752), (440, 280658), (560, 220517), (616, 200470), (770, 160376), (880, 140329), (1232, 100235), (1540, 80188), (3080, 40094), (6160, 20047)]