389712910

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1\times {\mathrm{1549}}^1$

素因数の和:1876

約数の個数: 32

約数和(自身を含む): 710892000

約数和(自身を除く): 321179090

約数列:

[1, 2, 5, 10, 139, 181, 278, 362, 695, 905, 1390, 1549, 1810, 3098, 7745, 15490, 25159, 50318, 125795, 215311, 251590, 280369, 430622, 560738, 1076555, 1401845, 2153110, 2803690, 38971291, 77942582, 194856455, 389712910]

約数ペア:

[(1, 389712910), (2, 194856455), (5, 77942582), (10, 38971291), (139, 2803690), (181, 2153110), (278, 1401845), (362, 1076555), (695, 560738), (905, 430622), (1390, 280369), (1549, 251590), (1810, 215311), (3098, 125795), (7745, 50318), (15490, 25159)]