19707040

素因数分解:

$2^5\times 5^1\times {\mathrm{123169}}^1$

素因数の和:123184

約数の個数: 24

約数和(自身を含む): 46558260

約数和(自身を除く): 26851220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123169, 246338, 492676, 615845, 985352, 1231690, 1970704, 2463380, 3941408, 4926760, 9853520, 19707040]

約数ペア:

[(1, 19707040), (2, 9853520), (4, 4926760), (5, 3941408), (8, 2463380), (10, 1970704), (16, 1231690), (20, 985352), (32, 615845), (40, 492676), (80, 246338), (160, 123169)]