3161661520

素因数分解:

$2^4\times 5^1\times {\mathrm{39520769}}^1$

素因数の和:39520782

約数の個数: 20

約数和(自身を含む): 7350863220

約数和(自身を除く): 4189201700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 39520769, 79041538, 158083076, 197603845, 316166152, 395207690, 632332304, 790415380, 1580830760, 3161661520]

約数ペア:

[(1, 3161661520), (2, 1580830760), (4, 790415380), (5, 632332304), (8, 395207690), (10, 316166152), (16, 197603845), (20, 158083076), (40, 79041538), (80, 39520769)]