20160660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25847}}^1$

素因数の和:25872

約数の個数: 48

約数和(自身を含む): 60794496

約数和(自身を除く): 40633836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25847, 51694, 77541, 103388, 129235, 155082, 258470, 310164, 336011, 387705, 516940, 672022, 775410, 1008033, 1344044, 1550820, 1680055, 2016066, 3360110, 4032132, 5040165, 6720220, 10080330, 20160660]

約数ペア:

[(1, 20160660), (2, 10080330), (3, 6720220), (4, 5040165), (5, 4032132), (6, 3360110), (10, 2016066), (12, 1680055), (13, 1550820), (15, 1344044), (20, 1008033), (26, 775410), (30, 672022), (39, 516940), (52, 387705), (60, 336011), (65, 310164), (78, 258470), (130, 155082), (156, 129235), (195, 103388), (260, 77541), (390, 51694), (780, 25847)]