20528170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8311}}^1$

素因数の和:8350

約数の個数: 32

約数和(自身を含む): 41892480

約数和(自身を除く): 21364310

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8311, 16622, 41555, 83110, 108043, 157909, 216086, 315818, 540215, 789545, 1080430, 1579090, 2052817, 4105634, 10264085, 20528170]

約数ペア:

[(1, 20528170), (2, 10264085), (5, 4105634), (10, 2052817), (13, 1579090), (19, 1080430), (26, 789545), (38, 540215), (65, 315818), (95, 216086), (130, 157909), (190, 108043), (247, 83110), (494, 41555), (1235, 16622), (2470, 8311)]