2320420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 4907448

約数和(自身を除く): 2587028

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 641, 724, 905, 1282, 1810, 2564, 3205, 3620, 6410, 12820, 116021, 232042, 464084, 580105, 1160210, 2320420]

約数ペア:

[(1, 2320420), (2, 1160210), (4, 580105), (5, 464084), (10, 232042), (20, 116021), (181, 12820), (362, 6410), (641, 3620), (724, 3205), (905, 2564), (1282, 1810)]