408062540

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{13721}}^1$

素因数の和:15217

約数の個数: 24

約数和(自身を含む): 857570112

約数和(自身を除く): 449507572

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2974, 5948, 7435, 13721, 14870, 27442, 29740, 54884, 68605, 137210, 274420, 20403127, 40806254, 81612508, 102015635, 204031270, 408062540]

約数ペア:

[(1, 408062540), (2, 204031270), (4, 102015635), (5, 81612508), (10, 40806254), (20, 20403127), (1487, 274420), (2974, 137210), (5948, 68605), (7435, 54884), (13721, 29740), (14870, 27442)]