433820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 924000

約数和(自身を除く): 490180

約数列:

[1, 2, 4, 5, 10, 20, 109, 199, 218, 398, 436, 545, 796, 995, 1090, 1990, 2180, 3980, 21691, 43382, 86764, 108455, 216910, 433820]

約数ペア:

[(1, 433820), (2, 216910), (4, 108455), (5, 86764), (10, 43382), (20, 21691), (109, 3980), (199, 2180), (218, 1990), (398, 1090), (436, 995), (545, 796)]