40081280

素因数分解:

$2^7\times 5^1\times {\mathrm{62627}}^1$

素因数の和:62646

約数の個数: 32

約数和(自身を含む): 95820840

約数和(自身を除く): 55739560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 62627, 125254, 250508, 313135, 501016, 626270, 1002032, 1252540, 2004064, 2505080, 4008128, 5010160, 8016256, 10020320, 20040640, 40081280]

約数ペア:

[(1, 40081280), (2, 20040640), (4, 10020320), (5, 8016256), (8, 5010160), (10, 4008128), (16, 2505080), (20, 2004064), (32, 1252540), (40, 1002032), (64, 626270), (80, 501016), (128, 313135), (160, 250508), (320, 125254), (640, 62627)]