20457099290

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18767981}}^1$

素因数の和:18768097

約数の個数: 16

約数和(自身を含む): 37160604360

約数和(自身を除く): 16703505070

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18767981, 37535962, 93839905, 187679810, 2045709929, 4091419858, 10228549645, 20457099290]

約数ペア:

[(1, 20457099290), (2, 10228549645), (5, 4091419858), (10, 2045709929), (109, 187679810), (218, 93839905), (545, 37535962), (1090, 18767981)]