19101380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{6871}}^1$

素因数の和:7019

約数の個数: 24

約数和(自身を含む): 40407360

約数和(自身を除く): 21305980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 6871, 13742, 27484, 34355, 68710, 137420, 955069, 1910138, 3820276, 4775345, 9550690, 19101380]

約数ペア:

[(1, 19101380), (2, 9550690), (4, 4775345), (5, 3820276), (10, 1910138), (20, 955069), (139, 137420), (278, 68710), (556, 34355), (695, 27484), (1390, 13742), (2780, 6871)]