20163949720

素因数分解:

$2^3\times 5^1\times {\mathrm{504098743}}^1$

素因数の和:504098754

約数の個数: 16

約数和(自身を含む): 45368886960

約数和(自身を除く): 25204937240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504098743, 1008197486, 2016394972, 2520493715, 4032789944, 5040987430, 10081974860, 20163949720]

約数ペア:

[(1, 20163949720), (2, 10081974860), (4, 5040987430), (5, 4032789944), (8, 2520493715), (10, 2016394972), (20, 1008197486), (40, 504098743)]