40982020

素因数分解:

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

素因数の和:11511

約数の個数: 24

約数和(自身を含む): 86545368

約数和(自身を除く): 45563348

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 11321, 22642, 45284, 56605, 113210, 226420, 2049101, 4098202, 8196404, 10245505, 20491010, 40982020]

約数ペア:

[(1, 40982020), (2, 20491010), (4, 10245505), (5, 8196404), (10, 4098202), (20, 2049101), (181, 226420), (362, 113210), (724, 56605), (905, 45284), (1810, 22642), (3620, 11321)]