28239185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 10226095

約数列:

[1, 5, 13, 29, 65, 71, 145, 211, 355, 377, 923, 1055, 1885, 2059, 2743, 4615, 6119, 10295, 13715, 14981, 26767, 30595, 74905, 79547, 133835, 194753, 397735, 434449, 973765, 2172245, 5647837, 28239185]

約数ペア:

[(1, 28239185), (5, 5647837), (13, 2172245), (29, 973765), (65, 434449), (71, 397735), (145, 194753), (211, 133835), (355, 79547), (377, 74905), (923, 30595), (1055, 26767), (1885, 14981), (2059, 13715), (2743, 10295), (4615, 6119)]