20171188280

素因数分解:

$2^3\times 5^1\times {\mathrm{504279707}}^1$

素因数の和:504279718

約数の個数: 16

約数和(自身を含む): 45385173720

約数和(自身を除く): 25213985440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504279707, 1008559414, 2017118828, 2521398535, 4034237656, 5042797070, 10085594140, 20171188280]

約数ペア:

[(1, 20171188280), (2, 10085594140), (4, 5042797070), (5, 4034237656), (8, 2521398535), (10, 2017118828), (20, 1008559414), (40, 504279707)]