20837530

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2731}}^1$

素因数の和:2854

約数の個数: 32

約数和(自身を含む): 43274880

約数和(自身を除く): 22437350

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2731, 3815, 5462, 7630, 13655, 19117, 27310, 38234, 95585, 191170, 297679, 595358, 1488395, 2083753, 2976790, 4167506, 10418765, 20837530]

約数ペア:

[(1, 20837530), (2, 10418765), (5, 4167506), (7, 2976790), (10, 2083753), (14, 1488395), (35, 595358), (70, 297679), (109, 191170), (218, 95585), (545, 38234), (763, 27310), (1090, 19117), (1526, 13655), (2731, 7630), (3815, 5462)]