8455420

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1009}}^1$

素因数の和:1437

約数の個数: 24

約数和(自身を含む): 17816400

約数和(自身を除く): 9360980

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1009, 1676, 2018, 2095, 4036, 4190, 5045, 8380, 10090, 20180, 422771, 845542, 1691084, 2113855, 4227710, 8455420]

約数ペア:

[(1, 8455420), (2, 4227710), (4, 2113855), (5, 1691084), (10, 845542), (20, 422771), (419, 20180), (838, 10090), (1009, 8380), (1676, 5045), (2018, 4190), (2095, 4036)]