20107945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28123}}^1$

素因数の和:28152

約数の個数: 16

約数和(自身を含む): 28348992

約数和(自身を除く): 8241047

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28123, 140615, 309353, 365599, 1546765, 1827995, 4021589, 20107945]

約数ペア:

[(1, 20107945), (5, 4021589), (11, 1827995), (13, 1546765), (55, 365599), (65, 309353), (143, 140615), (715, 28123)]