30781855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{1069}}^1$

素因数の和:1530

約数の個数: 16

約数和(自身を含む): 39906720

約数和(自身を除く): 9124865

約数列:

[1, 5, 13, 65, 443, 1069, 2215, 5345, 5759, 13897, 28795, 69485, 473567, 2367835, 6156371, 30781855]

約数ペア:

[(1, 30781855), (5, 6156371), (13, 2367835), (65, 473567), (443, 69485), (1069, 28795), (2215, 13897), (5345, 5759)]