4080408320

素因数分解:

$2^8\times 5^1\times {\mathrm{3187819}}^1$

素因数の和:3187840

約数の個数: 36

約数和(自身を含む): 9773856120

約数和(自身を除く): 5693447800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 3187819, 6375638, 12751276, 15939095, 25502552, 31878190, 51005104, 63756380, 102010208, 127512760, 204020416, 255025520, 408040832, 510051040, 816081664, 1020102080, 2040204160, 4080408320]

約数ペア:

[(1, 4080408320), (2, 2040204160), (4, 1020102080), (5, 816081664), (8, 510051040), (10, 408040832), (16, 255025520), (20, 204020416), (32, 127512760), (40, 102010208), (64, 63756380), (80, 51005104), (128, 31878190), (160, 25502552), (256, 15939095), (320, 12751276), (640, 6375638), (1280, 3187819)]