40921564

素因数分解:

$2^2\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 72828000

約数和(自身を除く): 31906436

約数列:

[1, 2, 4, 101, 199, 202, 398, 404, 509, 796, 1018, 2036, 20099, 40198, 51409, 80396, 101291, 102818, 202582, 205636, 405164, 10230391, 20460782, 40921564]

約数ペア:

[(1, 40921564), (2, 20460782), (4, 10230391), (101, 405164), (199, 205636), (202, 202582), (398, 102818), (404, 101291), (509, 80396), (796, 51409), (1018, 40198), (2036, 20099)]