20505064

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{353}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 39570120

約数和(自身を除く): 19065056

約数列:

[1, 2, 4, 8, 53, 106, 137, 212, 274, 353, 424, 548, 706, 1096, 1412, 2824, 7261, 14522, 18709, 29044, 37418, 48361, 58088, 74836, 96722, 149672, 193444, 386888, 2563133, 5126266, 10252532, 20505064]

約数ペア:

[(1, 20505064), (2, 10252532), (4, 5126266), (8, 2563133), (53, 386888), (106, 193444), (137, 149672), (212, 96722), (274, 74836), (353, 58088), (424, 48361), (548, 37418), (706, 29044), (1096, 18709), (1412, 14522), (2824, 7261)]