40542020

素因数分解:

$2^2\times 5^1\times {\mathrm{2027101}}^1$

素因数の和:2027110

約数の個数: 12

約数和(自身を含む): 85138284

約数和(自身を除く): 44596264

約数列:

[1, 2, 4, 5, 10, 20, 2027101, 4054202, 8108404, 10135505, 20271010, 40542020]

約数ペア:

[(1, 40542020), (2, 20271010), (4, 10135505), (5, 8108404), (10, 4054202), (20, 2027101)]