90310180

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{22691}}^1$

素因数の和:22899

約数の個数: 24

約数和(自身を含む): 190612800

約数和(自身を除く): 100302620

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 22691, 45382, 90764, 113455, 226910, 453820, 4515509, 9031018, 18062036, 22577545, 45155090, 90310180]

約数ペア:

[(1, 90310180), (2, 45155090), (4, 22577545), (5, 18062036), (10, 9031018), (20, 4515509), (199, 453820), (398, 226910), (796, 113455), (995, 90764), (1990, 45382), (3980, 22691)]