640627204

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{174653}}^1$

素因数の和:174795

約数の個数: 24

約数和(自身を含む): 1291042368

約数和(自身を除く): 650415164

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 174653, 349306, 698612, 1222571, 2445142, 4890284, 22879543, 45759086, 91518172, 160156801, 320313602, 640627204]

約数ペア:

[(1, 640627204), (2, 320313602), (4, 160156801), (7, 91518172), (14, 45759086), (28, 22879543), (131, 4890284), (262, 2445142), (524, 1222571), (917, 698612), (1834, 349306), (3668, 174653)]