17989380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{719}}^1$

素因数の和:873

約数の個数: 72

約数和(自身を含む): 55036800

約数和(自身を除く): 37047420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 719, 834, 1251, 1390, 1438, 1668, 2085, 2157, 2502, 2780, 2876, 3595, 4170, 4314, 5004, 6255, 6471, 7190, 8340, 8628, 10785, 12510, 12942, 14380, 21570, 25020, 25884, 32355, 43140, 64710, 99941, 129420, 199882, 299823, 399764, 499705, 599646, 899469, 999410, 1199292, 1499115, 1798938, 1998820, 2998230, 3597876, 4497345, 5996460, 8994690, 17989380]

約数ペア:

[(1, 17989380), (2, 8994690), (3, 5996460), (4, 4497345), (5, 3597876), (6, 2998230), (9, 1998820), (10, 1798938), (12, 1499115), (15, 1199292), (18, 999410), (20, 899469), (30, 599646), (36, 499705), (45, 399764), (60, 299823), (90, 199882), (139, 129420), (180, 99941), (278, 64710), (417, 43140), (556, 32355), (695, 25884), (719, 25020), (834, 21570), (1251, 14380), (1390, 12942), (1438, 12510), (1668, 10785), (2085, 8628), (2157, 8340), (2502, 7190), (2780, 6471), (2876, 6255), (3595, 5004), (4170, 4314)]