19565420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139753}}^1$

素因数の和:139769

約数の個数: 24

約数和(自身を含む): 46957344

約数和(自身を除く): 27391924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139753, 279506, 559012, 698765, 978271, 1397530, 1956542, 2795060, 3913084, 4891355, 9782710, 19565420]

約数ペア:

[(1, 19565420), (2, 9782710), (4, 4891355), (5, 3913084), (7, 2795060), (10, 1956542), (14, 1397530), (20, 978271), (28, 698765), (35, 559012), (70, 279506), (140, 139753)]