80460880

素因数分解:

$2^4\times 5^1\times {\mathrm{1005761}}^1$

素因数の和:1005774

約数の個数: 20

約数和(自身を含む): 187071732

約数和(自身を除く): 106610852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1005761, 2011522, 4023044, 5028805, 8046088, 10057610, 16092176, 20115220, 40230440, 80460880]

約数ペア:

[(1, 80460880), (2, 40230440), (4, 20115220), (5, 16092176), (8, 10057610), (10, 8046088), (16, 5028805), (20, 4023044), (40, 2011522), (80, 1005761)]