256975905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{1487}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 422972928

約数和(自身を除く): 165997023

約数列:

[1, 3, 5, 15, 41, 123, 205, 281, 615, 843, 1405, 1487, 4215, 4461, 7435, 11521, 22305, 34563, 57605, 60967, 172815, 182901, 304835, 417847, 914505, 1253541, 2089235, 6267705, 17131727, 51395181, 85658635, 256975905]

約数ペア:

[(1, 256975905), (3, 85658635), (5, 51395181), (15, 17131727), (41, 6267705), (123, 2089235), (205, 1253541), (281, 914505), (615, 417847), (843, 304835), (1405, 182901), (1487, 172815), (4215, 60967), (4461, 57605), (7435, 34563), (11521, 22305)]