218974840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{782053}}^1$

素因数の和:782071

約数の個数: 32

約数和(自身を含む): 563078880

約数和(自身を除く): 344104040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 782053, 1564106, 3128212, 3910265, 5474371, 6256424, 7820530, 10948742, 15641060, 21897484, 27371855, 31282120, 43794968, 54743710, 109487420, 218974840]

約数ペア:

[(1, 218974840), (2, 109487420), (4, 54743710), (5, 43794968), (7, 31282120), (8, 27371855), (10, 21897484), (14, 15641060), (20, 10948742), (28, 7820530), (35, 6256424), (40, 5474371), (56, 3910265), (70, 3128212), (140, 1564106), (280, 782053)]