81251012

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{495433}}^1$

素因数の和:495478

約数の個数: 12

約数和(自身を含む): 145657596

約数和(自身を除く): 64406584

約数列:

[1, 2, 4, 41, 82, 164, 495433, 990866, 1981732, 20312753, 40625506, 81251012]

約数ペア:

[(1, 81251012), (2, 40625506), (4, 20312753), (41, 1981732), (82, 990866), (164, 495433)]