81456660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452537}}^1$

素因数の和:452552

約数の個数: 36

約数和(自身を含む): 247085748

約数和(自身を除く): 165629088

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452537, 905074, 1357611, 1810148, 2262685, 2715222, 4072833, 4525370, 5430444, 6788055, 8145666, 9050740, 13576110, 16291332, 20364165, 27152220, 40728330, 81456660]

約数ペア:

[(1, 81456660), (2, 40728330), (3, 27152220), (4, 20364165), (5, 16291332), (6, 13576110), (9, 9050740), (10, 8145666), (12, 6788055), (15, 5430444), (18, 4525370), (20, 4072833), (30, 2715222), (36, 2262685), (45, 1810148), (60, 1357611), (90, 905074), (180, 452537)]