18918380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72763}}^1$

素因数の和:72785

約数の個数: 24

約数和(自身を含む): 42785232

約数和(自身を除く): 23866852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72763, 145526, 291052, 363815, 727630, 945919, 1455260, 1891838, 3783676, 4729595, 9459190, 18918380]

約数ペア:

[(1, 18918380), (2, 9459190), (4, 4729595), (5, 3783676), (10, 1891838), (13, 1455260), (20, 945919), (26, 727630), (52, 363815), (65, 291052), (130, 145526), (260, 72763)]