20866690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1063}}^1$

素因数の和:1234

約数の個数: 32

約数和(自身を含む): 40755456

約数和(自身を除く): 19888766

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151, 302, 755, 1063, 1510, 1963, 2126, 3926, 5315, 9815, 10630, 13819, 19630, 27638, 69095, 138190, 160513, 321026, 802565, 1605130, 2086669, 4173338, 10433345, 20866690]

約数ペア:

[(1, 20866690), (2, 10433345), (5, 4173338), (10, 2086669), (13, 1605130), (26, 802565), (65, 321026), (130, 160513), (151, 138190), (302, 69095), (755, 27638), (1063, 19630), (1510, 13819), (1963, 10630), (2126, 9815), (3926, 5315)]