66806560

素因数分解:

$2^5\times 5^1\times {\mathrm{417541}}^1$

素因数の和:417556

約数の個数: 24

約数和(自身を含む): 157830876

約数和(自身を除く): 91024316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 417541, 835082, 1670164, 2087705, 3340328, 4175410, 6680656, 8350820, 13361312, 16701640, 33403280, 66806560]

約数ペア:

[(1, 66806560), (2, 33403280), (4, 16701640), (5, 13361312), (8, 8350820), (10, 6680656), (16, 4175410), (20, 3340328), (32, 2087705), (40, 1670164), (80, 835082), (160, 417541)]