257908084

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{70313}}^1$

素因数の和:70455

約数の個数: 24

約数和(自身を含む): 519761088

約数和(自身を除く): 261853004

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 70313, 140626, 281252, 492191, 984382, 1968764, 9211003, 18422006, 36844012, 64477021, 128954042, 257908084]

約数ペア:

[(1, 257908084), (2, 128954042), (4, 64477021), (7, 36844012), (14, 18422006), (28, 9211003), (131, 1968764), (262, 984382), (524, 492191), (917, 281252), (1834, 140626), (3668, 70313)]