18549990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2609}}^1$

素因数の和:2701

約数の個数: 48

約数和(自身を含む): 48859200

約数和(自身を除く): 30309210

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2609, 3555, 5218, 7110, 7827, 13045, 15654, 23481, 26090, 39135, 46962, 78270, 117405, 206111, 234810, 412222, 618333, 1030555, 1236666, 1854999, 2061110, 3091665, 3709998, 6183330, 9274995, 18549990]

約数ペア:

[(1, 18549990), (2, 9274995), (3, 6183330), (5, 3709998), (6, 3091665), (9, 2061110), (10, 1854999), (15, 1236666), (18, 1030555), (30, 618333), (45, 412222), (79, 234810), (90, 206111), (158, 117405), (237, 78270), (395, 46962), (474, 39135), (711, 26090), (790, 23481), (1185, 15654), (1422, 13045), (2370, 7827), (2609, 7110), (3555, 5218)]