81746260

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{11779}}^1$

素因数の和:12135

約数の個数: 24

約数和(自身を含む): 172176480

約数和(自身を除く): 90430220

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 6940, 11779, 23558, 47116, 58895, 117790, 235580, 4087313, 8174626, 16349252, 20436565, 40873130, 81746260]

約数ペア:

[(1, 81746260), (2, 40873130), (4, 20436565), (5, 16349252), (10, 8174626), (20, 4087313), (347, 235580), (694, 117790), (1388, 58895), (1735, 47116), (3470, 23558), (6940, 11779)]