1780028

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 3252480

約数和(自身を除く): 1472452

約数列:

[1, 2, 4, 43, 79, 86, 131, 158, 172, 262, 316, 524, 3397, 5633, 6794, 10349, 11266, 13588, 20698, 22532, 41396, 445007, 890014, 1780028]

約数ペア:

[(1, 1780028), (2, 890014), (4, 445007), (43, 41396), (79, 22532), (86, 20698), (131, 13588), (158, 11266), (172, 10349), (262, 6794), (316, 5633), (524, 3397)]