20491010

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{11321}}^1$

素因数の和:11509

約数の個数: 16

約数和(自身を含む): 37090872

約数和(自身を除く): 16599862

約数列:

[1, 2, 5, 10, 181, 362, 905, 1810, 11321, 22642, 56605, 113210, 2049101, 4098202, 10245505, 20491010]

約数ペア:

[(1, 20491010), (2, 10245505), (5, 4098202), (10, 2049101), (181, 113210), (362, 56605), (905, 22642), (1810, 11321)]