28870790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{659}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 56216160

約数和(自身を除く): 27345370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 337, 659, 674, 1318, 1685, 3295, 3370, 4381, 6590, 8567, 8762, 17134, 21905, 42835, 43810, 85670, 222083, 444166, 1110415, 2220830, 2887079, 5774158, 14435395, 28870790]

約数ペア:

[(1, 28870790), (2, 14435395), (5, 5774158), (10, 2887079), (13, 2220830), (26, 1110415), (65, 444166), (130, 222083), (337, 85670), (659, 43810), (674, 42835), (1318, 21905), (1685, 17134), (3295, 8762), (3370, 8567), (4381, 6590)]