19886440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71023}}^1$

素因数の和:71041

約数の個数: 32

約数和(自身を含む): 51137280

約数和(自身を除く): 31250840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71023, 142046, 284092, 355115, 497161, 568184, 710230, 994322, 1420460, 1988644, 2485805, 2840920, 3977288, 4971610, 9943220, 19886440]

約数ペア:

[(1, 19886440), (2, 9943220), (4, 4971610), (5, 3977288), (7, 2840920), (8, 2485805), (10, 1988644), (14, 1420460), (20, 994322), (28, 710230), (35, 568184), (40, 497161), (56, 355115), (70, 284092), (140, 142046), (280, 71023)]