20546890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 46335744

約数和(自身を除く): 25788854

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 67, 70, 91, 130, 134, 182, 335, 337, 455, 469, 670, 674, 871, 910, 938, 1685, 1742, 2345, 2359, 3370, 4355, 4381, 4690, 4718, 6097, 8710, 8762, 11795, 12194, 21905, 22579, 23590, 30485, 30667, 43810, 45158, 60970, 61334, 112895, 153335, 158053, 225790, 293527, 306670, 316106, 587054, 790265, 1467635, 1580530, 2054689, 2935270, 4109378, 10273445, 20546890]

約数ペア:

[(1, 20546890), (2, 10273445), (5, 4109378), (7, 2935270), (10, 2054689), (13, 1580530), (14, 1467635), (26, 790265), (35, 587054), (65, 316106), (67, 306670), (70, 293527), (91, 225790), (130, 158053), (134, 153335), (182, 112895), (335, 61334), (337, 60970), (455, 45158), (469, 43810), (670, 30667), (674, 30485), (871, 23590), (910, 22579), (938, 21905), (1685, 12194), (1742, 11795), (2345, 8762), (2359, 8710), (3370, 6097), (4355, 4718), (4381, 4690)]