19924780

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2029}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 41947920

約数和(自身を除く): 22023140

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2029, 2455, 4058, 4910, 8116, 9820, 10145, 20290, 40580, 996239, 1992478, 3984956, 4981195, 9962390, 19924780]

約数ペア:

[(1, 19924780), (2, 9962390), (4, 4981195), (5, 3984956), (10, 1992478), (20, 996239), (491, 40580), (982, 20290), (1964, 10145), (2029, 9820), (2455, 8116), (4058, 4910)]