20457004

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:817

約数の個数: 24

約数和(自身を含む): 36974000

約数和(自身を除く): 16516996

約数列:

[1, 2, 4, 37, 74, 148, 277, 499, 554, 998, 1108, 1996, 10249, 18463, 20498, 36926, 40996, 73852, 138223, 276446, 552892, 5114251, 10228502, 20457004]

約数ペア:

[(1, 20457004), (2, 10228502), (4, 5114251), (37, 552892), (74, 276446), (148, 138223), (277, 73852), (499, 40996), (554, 36926), (998, 20498), (1108, 18463), (1996, 10249)]