20195420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144253}}^1$

素因数の和:144269

約数の個数: 24

約数和(自身を含む): 48469344

約数和(自身を除く): 28273924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144253, 288506, 577012, 721265, 1009771, 1442530, 2019542, 2885060, 4039084, 5048855, 10097710, 20195420]

約数ペア:

[(1, 20195420), (2, 10097710), (4, 5048855), (5, 4039084), (7, 2885060), (10, 2019542), (14, 1442530), (20, 1009771), (28, 721265), (35, 577012), (70, 288506), (140, 144253)]