20153480

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1873}}^1$

素因数の和:2153

約数の個数: 32

約数和(自身を含む): 45538200

約数和(自身を除く): 25384720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 1873, 2152, 2690, 3746, 5380, 7492, 9365, 10760, 14984, 18730, 37460, 74920, 503837, 1007674, 2015348, 2519185, 4030696, 5038370, 10076740, 20153480]

約数ペア:

[(1, 20153480), (2, 10076740), (4, 5038370), (5, 4030696), (8, 2519185), (10, 2015348), (20, 1007674), (40, 503837), (269, 74920), (538, 37460), (1076, 18730), (1345, 14984), (1873, 10760), (2152, 9365), (2690, 7492), (3746, 5380)]