18973084420

素因数分解:

$2^2\times 5^1\times {\mathrm{13681}}^1\times {\mathrm{69341}}^1$

素因数の和:83031

約数の個数: 24

約数和(自身を含む): 39846964248

約数和(自身を除く): 20873879828

約数列:

[1, 2, 4, 5, 10, 20, 13681, 27362, 54724, 68405, 69341, 136810, 138682, 273620, 277364, 346705, 693410, 1386820, 948654221, 1897308442, 3794616884, 4743271105, 9486542210, 18973084420]

約数ペア:

[(1, 18973084420), (2, 9486542210), (4, 4743271105), (5, 3794616884), (10, 1897308442), (20, 948654221), (13681, 1386820), (27362, 693410), (54724, 346705), (68405, 277364), (69341, 273620), (136810, 138682)]