19686220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{719}}^1$

素因数の和:802

約数の個数: 36

約数和(自身を含む): 42547680

約数和(自身を除く): 22861460

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 719, 740, 1369, 1438, 2738, 2876, 3595, 5476, 6845, 7190, 13690, 14380, 26603, 27380, 53206, 106412, 133015, 266030, 532060, 984311, 1968622, 3937244, 4921555, 9843110, 19686220]

約数ペア:

[(1, 19686220), (2, 9843110), (4, 4921555), (5, 3937244), (10, 1968622), (20, 984311), (37, 532060), (74, 266030), (148, 133015), (185, 106412), (370, 53206), (719, 27380), (740, 26603), (1369, 14380), (1438, 13690), (2738, 7190), (2876, 6845), (3595, 5476)]