261567315

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{51439}}^1$

素因数の和:51563

約数の個数: 24

約数和(自身を含む): 457404480

約数和(自身を除く): 195837165

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 565, 1017, 1695, 5085, 51439, 154317, 257195, 462951, 771585, 2314755, 5812607, 17437821, 29063035, 52313463, 87189105, 261567315]

約数ペア:

[(1, 261567315), (3, 87189105), (5, 52313463), (9, 29063035), (15, 17437821), (45, 5812607), (113, 2314755), (339, 771585), (565, 462951), (1017, 257195), (1695, 154317), (5085, 51439)]