80045320

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4643}}^1$

素因数の和:5085

約数の個数: 32

約数和(自身を含む): 180558720

約数和(自身を除く): 100513400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 4643, 8620, 9286, 17240, 18572, 23215, 37144, 46430, 92860, 185720, 2001133, 4002266, 8004532, 10005665, 16009064, 20011330, 40022660, 80045320]

約数ペア:

[(1, 80045320), (2, 40022660), (4, 20011330), (5, 16009064), (8, 10005665), (10, 8004532), (20, 4002266), (40, 2001133), (431, 185720), (862, 92860), (1724, 46430), (2155, 37144), (3448, 23215), (4310, 18572), (4643, 17240), (8620, 9286)]