20123409640

素因数分解:

$2^3\times 5^1\times {\mathrm{503085241}}^1$

素因数の和:503085252

約数の個数: 16

約数和(自身を含む): 45277671780

約数和(自身を除く): 25154262140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503085241, 1006170482, 2012340964, 2515426205, 4024681928, 5030852410, 10061704820, 20123409640]

約数ペア:

[(1, 20123409640), (2, 10061704820), (4, 5030852410), (5, 4024681928), (8, 2515426205), (10, 2012340964), (20, 1006170482), (40, 503085241)]