19792315

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{439}}^1$

素因数の和:642

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 4537925

約数列:

[1, 5, 71, 127, 355, 439, 635, 2195, 9017, 31169, 45085, 55753, 155845, 278765, 3958463, 19792315]

約数ペア:

[(1, 19792315), (5, 3958463), (71, 278765), (127, 155845), (355, 55753), (439, 45085), (635, 31169), (2195, 9017)]