15878320

素因数分解:

$2^4\times 5^1\times {\mathrm{198479}}^1$

素因数の和:198492

約数の個数: 20

約数和(自身を含む): 36917280

約数和(自身を除く): 21038960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 198479, 396958, 793916, 992395, 1587832, 1984790, 3175664, 3969580, 7939160, 15878320]

約数ペア:

[(1, 15878320), (2, 7939160), (4, 3969580), (5, 3175664), (8, 1984790), (10, 1587832), (16, 992395), (20, 793916), (40, 396958), (80, 198479)]