39720904

素因数分解:

$2^3\times {\mathrm{503}}^1\times {\mathrm{9871}}^1$

素因数の和:10380

約数の個数: 16

約数和(自身を含む): 74632320

約数和(自身を除く): 34911416

約数列:

[1, 2, 4, 8, 503, 1006, 2012, 4024, 9871, 19742, 39484, 78968, 4965113, 9930226, 19860452, 39720904]

約数ペア:

[(1, 39720904), (2, 19860452), (4, 9930226), (8, 4965113), (503, 78968), (1006, 39484), (2012, 19742), (4024, 9871)]