205123840

素因数分解:

$2^8\times 5^1\times {\mathrm{160253}}^1$

素因数の和:160274

約数の個数: 36

約数和(自身を含む): 491338764

約数和(自身を除く): 286214924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 160253, 320506, 641012, 801265, 1282024, 1602530, 2564048, 3205060, 5128096, 6410120, 10256192, 12820240, 20512384, 25640480, 41024768, 51280960, 102561920, 205123840]

約数ペア:

[(1, 205123840), (2, 102561920), (4, 51280960), (5, 41024768), (8, 25640480), (10, 20512384), (16, 12820240), (20, 10256192), (32, 6410120), (40, 5128096), (64, 3205060), (80, 2564048), (128, 1602530), (160, 1282024), (256, 801265), (320, 641012), (640, 320506), (1280, 160253)]