257245492

素因数分解:

$2^2\times 7^2\times {\mathrm{379}}^1\times {\mathrm{3463}}^1$

素因数の和:3860

約数の個数: 36

約数和(自身を含む): 525211680

約数和(自身を除く): 267966188

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 379, 758, 1516, 2653, 3463, 5306, 6926, 10612, 13852, 18571, 24241, 37142, 48482, 74284, 96964, 169687, 339374, 678748, 1312477, 2624954, 5249908, 9187339, 18374678, 36749356, 64311373, 128622746, 257245492]

約数ペア:

[(1, 257245492), (2, 128622746), (4, 64311373), (7, 36749356), (14, 18374678), (28, 9187339), (49, 5249908), (98, 2624954), (196, 1312477), (379, 678748), (758, 339374), (1516, 169687), (2653, 96964), (3463, 74284), (5306, 48482), (6926, 37142), (10612, 24241), (13852, 18571)]