80480660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309541}}^1$

素因数の和:309563

約数の個数: 24

約数和(自身を含む): 182010696

約数和(自身を除く): 101530036

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309541, 619082, 1238164, 1547705, 3095410, 4024033, 6190820, 8048066, 16096132, 20120165, 40240330, 80480660]

約数ペア:

[(1, 80480660), (2, 40240330), (4, 20120165), (5, 16096132), (10, 8048066), (13, 6190820), (20, 4024033), (26, 3095410), (52, 1547705), (65, 1238164), (130, 619082), (260, 309541)]