20423240

素因数分解:

$2^3\times 5^1\times {\mathrm{510581}}^1$

素因数の和:510592

約数の個数: 16

約数和(自身を含む): 45952380

約数和(自身を除く): 25529140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 510581, 1021162, 2042324, 2552905, 4084648, 5105810, 10211620, 20423240]

約数ペア:

[(1, 20423240), (2, 10211620), (4, 5105810), (5, 4084648), (8, 2552905), (10, 2042324), (20, 1021162), (40, 510581)]