28044920

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3559}}^1$

素因数の和:3767

約数の個数: 32

約数和(自身を含む): 63439200

約数和(自身を除く): 35394280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3559, 3940, 7118, 7880, 14236, 17795, 28472, 35590, 71180, 142360, 701123, 1402246, 2804492, 3505615, 5608984, 7011230, 14022460, 28044920]

約数ペア:

[(1, 28044920), (2, 14022460), (4, 7011230), (5, 5608984), (8, 3505615), (10, 2804492), (20, 1402246), (40, 701123), (197, 142360), (394, 71180), (788, 35590), (985, 28472), (1576, 17795), (1970, 14236), (3559, 7880), (3940, 7118)]