81400185

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{48889}}^1$

素因数の和:48937

約数の個数: 24

約数和(自身を含む): 144909960

約数和(自身を除く): 63509775

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 48889, 146667, 244445, 440001, 733335, 1808893, 2200005, 5426679, 9044465, 16280037, 27133395, 81400185]

約数ペア:

[(1, 81400185), (3, 27133395), (5, 16280037), (9, 9044465), (15, 5426679), (37, 2200005), (45, 1808893), (111, 733335), (185, 440001), (333, 244445), (555, 146667), (1665, 48889)]