25340620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20771}}^1$

素因数の和:20841

約数の個数: 24

約数和(自身を含む): 54090288

約数和(自身を除く): 28749668

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 20771, 41542, 83084, 103855, 207710, 415420, 1267031, 2534062, 5068124, 6335155, 12670310, 25340620]

約数ペア:

[(1, 25340620), (2, 12670310), (4, 6335155), (5, 5068124), (10, 2534062), (20, 1267031), (61, 415420), (122, 207710), (244, 103855), (305, 83084), (610, 41542), (1220, 20771)]