12990010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{439}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 25660800

約数和(自身を除く): 12670790

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 269, 439, 538, 878, 1345, 2195, 2690, 2959, 4390, 4829, 5918, 9658, 14795, 24145, 29590, 48290, 118091, 236182, 590455, 1180910, 1299001, 2598002, 6495005, 12990010]

約数ペア:

[(1, 12990010), (2, 6495005), (5, 2598002), (10, 1299001), (11, 1180910), (22, 590455), (55, 236182), (110, 118091), (269, 48290), (439, 29590), (538, 24145), (878, 14795), (1345, 9658), (2195, 5918), (2690, 4829), (2959, 4390)]