20412425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{373}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 27825600

約数和(自身を除く): 7413175

約数列:

[1, 5, 11, 25, 55, 199, 275, 373, 995, 1865, 2189, 4103, 4975, 9325, 10945, 20515, 54725, 74227, 102575, 371135, 816497, 1855675, 4082485, 20412425]

約数ペア:

[(1, 20412425), (5, 4082485), (11, 1855675), (25, 816497), (55, 371135), (199, 102575), (275, 74227), (373, 54725), (995, 20515), (1865, 10945), (2189, 9325), (4103, 4975)]