1285164800

素因数分解:

$2^8\times 5^2\times {\mathrm{200807}}^1$

素因数の和:200833

約数の個数: 54

約数和(自身を含む): 3180999528

約数和(自身を除く): 1895834728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 200807, 401614, 803228, 1004035, 1606456, 2008070, 3212912, 4016140, 5020175, 6425824, 8032280, 10040350, 12851648, 16064560, 20080700, 25703296, 32129120, 40161400, 51406592, 64258240, 80322800, 128516480, 160645600, 257032960, 321291200, 642582400, 1285164800]

約数ペア:

[(1, 1285164800), (2, 642582400), (4, 321291200), (5, 257032960), (8, 160645600), (10, 128516480), (16, 80322800), (20, 64258240), (25, 51406592), (32, 40161400), (40, 32129120), (50, 25703296), (64, 20080700), (80, 16064560), (100, 12851648), (128, 10040350), (160, 8032280), (200, 6425824), (256, 5020175), (320, 4016140), (400, 3212912), (640, 2008070), (800, 1606456), (1280, 1004035), (1600, 803228), (3200, 401614), (6400, 200807)]