28667405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 39287808

約数和(自身を除く): 10620403

約数列:

[1, 5, 13, 31, 41, 65, 155, 205, 347, 403, 533, 1271, 1735, 2015, 2665, 4511, 6355, 10757, 14227, 16523, 22555, 53785, 71135, 82615, 139841, 184951, 441037, 699205, 924755, 2205185, 5733481, 28667405]

約数ペア:

[(1, 28667405), (5, 5733481), (13, 2205185), (31, 924755), (41, 699205), (65, 441037), (155, 184951), (205, 139841), (347, 82615), (403, 71135), (533, 53785), (1271, 22555), (1735, 16523), (2015, 14227), (2665, 10757), (4511, 6355)]