20145565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{6911}}^1$

素因数の和:6980

約数の個数: 16

約数和(自身を含む): 26873856

約数和(自身を除く): 6728291

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 6911, 34555, 76021, 366283, 380105, 1831415, 4029113, 20145565]

約数ペア:

[(1, 20145565), (5, 4029113), (11, 1831415), (53, 380105), (55, 366283), (265, 76021), (583, 34555), (2915, 6911)]