12697960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28859}}^1$

素因数の和:28881

約数の個数: 32

約数和(自身を含む): 31168800

約数和(自身を除く): 18470840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 28859, 57718, 115436, 144295, 230872, 288590, 317449, 577180, 634898, 1154360, 1269796, 1587245, 2539592, 3174490, 6348980, 12697960]

約数ペア:

[(1, 12697960), (2, 6348980), (4, 3174490), (5, 2539592), (8, 1587245), (10, 1269796), (11, 1154360), (20, 634898), (22, 577180), (40, 317449), (44, 288590), (55, 230872), (88, 144295), (110, 115436), (220, 57718), (440, 28859)]