20654810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1049}}^1$

素因数の和:1246

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 20169190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1049, 1790, 1969, 2098, 3938, 5245, 9845, 10490, 11539, 19690, 23078, 57695, 115390, 187771, 375542, 938855, 1877710, 2065481, 4130962, 10327405, 20654810]

約数ペア:

[(1, 20654810), (2, 10327405), (5, 4130962), (10, 2065481), (11, 1877710), (22, 938855), (55, 375542), (110, 187771), (179, 115390), (358, 57695), (895, 23078), (1049, 19690), (1790, 11539), (1969, 10490), (2098, 9845), (3938, 5245)]